From the South, to the Midwest, to infinity and beyond. The Orion spacecraft for Artemis I has several stops to make before heading out into the expanse, and it can’t go to the Moon until it stops in Ohio. It landed at the Mansfield Lahm Regional Airport on Nov. 24, and then it was transferred to Plum Brook Station where it will undergo a series of environmental tests over the next four months to make sure it’s ready for space. Here are the highlights of its journey so far.
The 40-degree-and-extremely-windy weather couldn’t stop the massive crowd at Mansfield from waiting hours to see the Super Guppy land. Families huddled together as they waited, some decked out in NASA gear, including one astronaut costume complete with a helmet. Despite the delays, about 1,500 people held out to watch the bulbous airplane touch down.
After Orion safely made it to Ohio, the next step was transporting it 41 miles to Plum Brook Station. It was loaded onto a massive truck to make the trip, and the drive lasted several hours as it slowly maneuvered the rural route to the facility. The 130-foot, 38-wheel truck hit a peak speed of about 20 miles per hour. It was the largest load ever driven through the state, and more than 700 utility lines were raised or moved in preparation to let the vehicle pass.
Any person who even thinks about breathing near Orion has to be suited up. We’re talking “bunny” suit, shoe covers, beard covers, hoods, latex gloves – the works. One of our top priorities is keeping Orion clean during testing to prevent contaminants from sticking to the vehicle’s surface. These substances could cause issues for the capsule during testing and, more importantly, later during its flight around the Moon.
On the ceiling of the Space Environments Complex at Plum Brook Station is a colossal crane used to move large pieces of space hardware into position for testing. It’s an important tool during pretest work, as it is used to lift Orion from the “verticator”—the name we use for the massive contraption used to rotate the vehicle from its laying down position into an upright testing orientation. After liftoff from the verticator, technicians then used the crane to install the spacecraft inside the Heat Flux System for testing.
Although it looks like tin foil, the metallic material wrapped around Orion and the Heat Flux System—the bird cage-looking hardware encapsulating the spacecraft—is a material called Mylar. It’s used as a thermal barrier to help control which areas of the spacecraft get heated or cooled during testing. This helps our team avoid wasting energy heating and cooling spots unnecessarily.
It took a little over a week to prep Orion for its thermal test in the vacuum chamber. Now begins the 63-day process of heating and cooling (ranging from -250° to 300° Fahrenheit) the capsule to ensure it’s ready to withstand the journey around the Moon and back.
View more images of Orion’s transportation and preparation here.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
It might look like something you’d find on Earth, but this piece of technology has a serious job to do: track global sea level rise with unprecedented accuracy. It’s #SeeingTheSeas mission will:
Provide information that will help researchers understand how climate change is reshaping Earth's coastlines – and how fast this is happenin.
Help researchers better understand how Earth's climate is changing by expanding the global atmospheric temperature data record
Help to improve weather forecasts by providing meteorologists information on atmospheric temperature and humidity.
Tune in tomorrow, Nov. 21 at 11:45 a.m. EST to watch this U.S.-European satellite launch to space! Liftoff is targeted for 12:17 p.m. EST. Watch HERE.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Does the object in this image look like a mirror? Maybe not, but that’s exactly what it is! To be more precise, it’s a set of mirrors that will be used on an X-ray telescope. But why does it look nothing like the mirrors you’re familiar with? To answer that, let’s first take a step back. Let’s talk telescopes.
The basic function of a telescope is to gather and focus light to amplify the light’s source. Astronomers have used telescopes for centuries, and there are a few different designs. Today, most telescopes use curved mirrors that magnify and focus light from distant objects onto your eye, a camera, or some other instrument. The mirrors can be made from a variety of materials, including glass or metal.
Space telescopes like the James Webb and Hubble Space Telescopes use large mirrors to focus light from some of the most distant objects in the sky. However, the mirrors must be tailored for the type and range of light the telescope is going to capture—and X-rays are especially hard to catch.
X-rays tend to zip through most things. This is because X-rays have much smaller wavelengths than most other types of light. In fact, X-rays can be smaller than a single atom of almost every element. When an X-ray encounters some surfaces, it can pass right between the atoms!
Doctors use this property of X-rays to take pictures of what’s inside you. They use a beam of X-rays that mostly passes through skin and muscle but is largely blocked by denser materials, like bone. The shadow of what was blocked shows up on the film.
This tendency to pass through things includes most mirrors. If you shoot a beam of X-rays into a standard telescope, most of the light would go right through or be absorbed. The X-rays wouldn’t be focused by the mirror, and we wouldn’t be able to study them.
X-rays can bounce off a specially designed mirror, one turned on its side so that the incoming X-rays arrive almost parallel to the surface and glance off it. At this shallow angle, the space between atoms in the mirror's surface shrinks so much that X-rays can't sneak through. The light bounces off the mirror like a stone skipping on water. This type of mirror is called a grazing incidence mirror.
Telescope mirrors curve so that all of the incoming light comes to the same place. Mirrors for most telescopes are based on the same 3D shape — a paraboloid. You might remember the parabola from your math classes as the cup-shaped curve. A paraboloid is a 3D version of that, spinning it around the axis, a little like the nose cone of a rocket. This turns out to be a great shape for focusing light at a point.
Mirrors for visible and infrared light and dishes for radio light use the “cup” portion of that paraboloid. For X-ray astronomy, we cut it a little differently to use the wall. Same shape, different piece. The mirrors for visible, infrared, ultraviolet, and radio telescopes look like a gently-curving cup. The X-ray mirror looks like a cylinder with very slightly angled walls.
The image below shows how different the mirrors look. On the left is one of the Chandra X-ray Observatory’s cylindrical mirrors. On the right you can see the gently curved round primary mirror for the Stratospheric Observatory for Infrared Astronomy telescope.
If we use just one grazing incidence mirror in an X-ray telescope, there would be a big hole, as shown above (left). We’d miss a lot of X-rays! Instead, our mirror makers fill in that cylinder with layers and layers of mirrors, like an onion. Then we can collect more of the X-rays that enter the telescope, giving us more light to study.
Nested mirrors like this have been used in many X-ray telescopes. Above is a close-up of the mirrors for an upcoming observatory called the X-ray Imaging and Spectroscopy Mission (XRISM, pronounced “crism”), which is a Japan Aerospace Exploration Agency (JAXA)-led international collaboration between JAXA, NASA, and the European Space Agency (ESA).
The XRISM mirror assembly uses thin, gold-coated mirrors to make them super reflective to X-rays. Each of the two assemblies has 1,624 of these layers packed in them. And each layer is so smooth that the roughest spots rise no more than one millionth of a millimeter.
Why go to all this trouble to collect this elusive light? X-rays are a great way to study the hottest and most energetic areas of the universe! For example, at the centers of certain galaxies, there are black holes that heat up gas, producing all kinds of light. The X-rays can show us light emitted by material just before it falls in.
Stay tuned to NASA Universe on Twitter and Facebook to keep up with the latest on XRISM and other X-ray observatories.
Make sure to follow us on Tumblr for your regular dose of space!
From onboard a NASA research plane, Operation IceBridge is flying survey flights over Antarctica, studying how the frozen continent is changing. The average Antarctic flight is 11-12 hours long; with all that time in the air, the science team sees some striking and interesting views, including two rectangular-looking icebergs off Antarctica’s Larsen C ice shelf.
They're both tabular icebergs, which are relatively common in the Antarctic. They form by breaking off ice shelves -- when they are “fresh,” they have flat tops and angular lines and edges because they haven't been rounded or broken by wind and waves.
Operation IceBridge is one part of NASA's exploration of the cryosphere -- Earth's icy reaches. Follow along as we explore the frozen regions of our home planet.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Good news for future astronauts: scientists are closer to being able to predict when global dust storms will strike the Red Planet. The winds there don't carry nearly the same force that was shown in the movie "The Martian," but the dust lofted by storms can still wreak havoc on people and machines, as well as reduce available solar energy. Recent studies indicate a big storm may be brewing during the next few months.
+ Get the full forecast
Our Opportunity Mars rover will drive down an ancient gully that may have been carved by liquid water. Several spacecraft at Mars have observed such channels from a distance, but this will be the first up-close exploration. Opportunity will also, for the first time, enter the interior of Endeavour Crater, where it has worked for the last five years. All this is part of a two-year extended mission that began Oct. 1, the latest in a series of extensions going back to the end of Opportunity's prime mission in April 2004. Opportunity landed on Mars in January of that year, on a mission planned to last 90 Martian days (92.4 Earth days). More than 12 Earth years later, it's still rolling.
+ Follow along + See other recent pictures from Endeavour Crater
Opportunity isn't the only NASA Mars rover getting a mission extension. On the other side of the planet, the Curiosity rover is driving and collecting samples amid some of the most scenic landscapes ever visited on Mars. Curiosity's two-year mission extension also began Oct. 1. It's driving toward uphill destinations, including a ridge capped with material rich in the iron-oxide mineral hematite, about a mile-and-a-half (two-and-a-half kilometers) ahead. Beyond that, there's an exposure of clay-rich bedrock. These are key exploration sites on lower Mount Sharp, which is a layered, Mount-Rainier-size mound where Curiosity is investigating evidence of ancient, water-rich environments that contrast with the harsh, dry conditions on the surface of Mars today.
+ Learn more
Meanwhile, the Mars Reconnaissance Orbiter continues its watch on the Red Planet from above. The mission team has just released a massive new collection of super-high-resolution images of the Martian surface.
+ Take a look
In the year 2020, Opportunity and Curiosity will be joined by a new mobile laboratory on Mars. In the past week, we tested new "eyes" for that mission. The Mars 2020 rover's Lander Vision System helped guide the rocket to a precise landing at a predesignated target. The system can direct the craft toward a safe landing at its primary target site or divert touchdown toward better terrain if there are hazards in the approaching target area.
+ Get details
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Here are 10 perspective-building images for your computer desktop and mobile device wallpaper.
These are all real images, sent very recently by our planetary missions throughout the solar system.
Warm up with this view from our Solar Dynamics Observatory showing active regions on the Sun in October 2017. They were observed in a wavelength of extreme ultraviolet light that reveals plasma heated to over a million degrees.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
This series of enhanced-color images shows Jupiter up close and personal, as our Juno spacecraft performed its eighth flyby of the gas giant planet on Sept. 1, 2017.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
With this mosaic from Oct. 28, 2016, our Cassini spacecraft captured one of its last looks at Saturn and its main rings from a distance.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
This look from our Curiosity Mars rover includes several geological layers in Gale crater to be examined by the mission, as well as the higher reaches of Mount Sharp beyond. The redder rocks of the foreground are part of the Murray formation. Pale gray rocks in the middle distance of the right half of the image are in the Clay Unit. A band between those terrains is "Vera Rubin Ridge," where the rover is working currently. The view combines six images taken with the rover's Mast Camera (Mastcam) on Jan. 24, 2017.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
Cassini peers toward a sliver of Saturn's sunlit atmosphere while the icy rings stretch across the foreground as a dark band on March 31, 2017. This view looks toward the unilluminated side of the rings from about 7 degrees below the ring plane.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
This image of the limb of dwarf planet Ceres shows a section of the northern hemisphere, as seen by our Dawn mission. Prominently featured is Occator Crater, home of Ceres' intriguing "bright spots." The latest research suggests that the bright material in this crater is comprised of salts left behind after a briny liquid emerged from below.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
This image from our Mars Reconnaissance Orbiter (MRO) shows a crater in the region with the most impressive known gully activity in Mars' northern hemisphere. Gullies are active in the winter due to carbon dioxide frost, but northern winters are shorter and warmer than southern winters, so there is less frost and less gully activity.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
A dynamic storm at the southern edge of Jupiter's northern polar region dominates this Jovian cloudscape, courtesy of Juno. This storm is a long-lived anticyclonic oval named North North Temperate Little Red Spot 1. Citizen scientists Gerald Eichstädt and Seán Doran processed this image using data from the JunoCam imager.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
This false-color view from the Cassini spacecraft gazes toward the rings beyond Saturn's sunlit horizon. Along the limb (the planet's edge) at left can be seen a thin, detached haze.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
Saturn's active, ocean-bearing moon Enceladus sinks behind the giant planet in a farewell portrait from Cassini. This view of Enceladus was taken by NASA's Cassini spacecraft on Sept. 13, 2017. It is among the last images Cassini sent back before its mission came to an end on Sept. 15, after nearly 20 years in space.
Downloads Desktop: 1280 x 800 | 1600 x 1200 | 1920 x 1200 Mobile: 1440 x 2560 | 1080 x 1920 | 750 x 1334
Applying Wallpaper: 1. Click on the screen resolution you would like to use. 2. Right-click on the image (control-click on a Mac) and select the option 'Set the Background' or 'Set as Wallpaper' (or similar).
Places to look for more of our pictures include solarsystem.nasa.gov/galleries, images.nasa.gov and www.jpl.nasa.gov/spaceimages.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
NASA astronaut Megan McArthur will launch on Friday, April 23 to the International Space Station as the pilot for NASA’s SpaceX Crew-2 mission! This is the second crew rotation flight with astronauts on the Crew Dragon spacecraft and the first launch with two international partners as part of the agency’s Commercial Crew Program. McArthur is responsible for spacecraft systems and performance and is assigned to be a long-duration space station crew member. While this is her first trip to the space station, McArthur’s career has prepared her well for this important role on the Crew-2 team!
McArthur on the Crew Access Arm of the mobile launcher inside the Vehicle Assembly Building at Kennedy Space Center. Credits: NASA/Joel Kowsky
McArthur was born in Honolulu, Hawaii and grew up in California. She is a former Girl Scout and has a Bachelor of Science in Aerospace Engineering from the University of California, Los Angeles and a Ph.D. in Oceanography from the University of California, San Diego where she performed research activities at the Scripps Institution of Oceanography.
McArthur floating in microgravity during her STS-125 mission in 2009 aboard space shuttle Atlantis. Credits: NASA
While in graduate school, McArthur conducted research, served as Chief Scientist for at-sea data collection operations, and planned and led diving operations. She also volunteered at the Birch Aquarium at Scripps, conducting educational demonstrations for the public from inside a 70,000-gallon exhibit tank of the California Kelp Forest. Her experience conducting research in extreme conditions will certainly come in handy once she’s aboard the space station, as a big part of the astronauts’ job involves running research experiments in microgravity.
McArthur, seen through the window of space shuttle Atlantis, operating the robotic arm during a spacewalk. Credits: NASA
McArthur was selected as a NASA astronaut in 2000 and flew her first spaceflight aboard STS-125, the final space shuttle mission to service the Hubble Space Telescope. She worked as the flight engineer during launch and landing, and also served as the shuttle's robotic arm operator as she carefully retrieved the telescope and placed it in the shuttle’s cargo bay for servicing. The successful mission improved the telescope's capabilities and extended its life – and Hubble is still helping us make discoveries about our universe.
McArthur pictured in her pressure suit during a training session at SpaceX HQ in Hawthorne, California. Credits: NASA
Now, it’s time for the next big milestone in McArthur’s career! On Friday, April 23 Crew-2 will launch from Kennedy Space Center in Florida en route to the International Space Station. McArthur is the pilot of the Crew Dragon spacecraft and second-in-command for the mission.
NASA TV coverage of Crew-2 launch preparations and liftoff will begin at 1:30 a.m. EDT Friday, April 23 with launch scheduled for 5:49 a.m. EDT. Crew Dragon is scheduled to dock to the space station Saturday, April 24, at approximately 5:10 a.m. EDT. Watch live: www.nasa.gov/nasalive
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
Gravity rules everything on Earth, from how our bodies develop to what our research can reveal, but what happens when we go 250 miles up to the International Space Station?
Get ready to go behind the scenes of what it takes to get science to space, and meet the people who make it happen.
Introducing Season 4 of NASA Explorers: Microgravity. Floating isn’t just fun. Microgravity could open the door to discovery.
Microgravity makes the International Space Station the perfect place to perform research that is changing the lives of people on Earth, and preparing us to go deeper into space. This season on our series NASA Explorers, we are following science into low-Earth orbit and seeing what it takes to do research aboard the space station.
Follow NASA Explorers on Facebook to catch new episodes of season 4 every Wednesday!
In the latest installment of our First Woman graphic novel series, we see Commander Callie Rodriguez embark on the next phase of her trailblazing journey, as she leaves the Moon to take the helm at Mission Control.
Flight directors work in Mission Control to oversee operations of the International Space Station and Artemis missions to the Moon. They have a unique, overarching perspective focused on integration between all the systems that make a mission a success – flight directors have to learn a little about a lot.
Diane Dailey and Chloe Mehring were selected as flight directors in 2021. They’ll be taking your questions about what it’s like to lead teams of flight controllers, engineers, and countless professionals, both agencywide and internationally, in an Answer Time session on Nov. 28, 2023, from noon to 1 p.m. EST (9-10 a.m. PST) here on our Tumblr!
Like Callie, how did their unique backgrounds and previous experience, prepare them for this role? What are they excited about as we return to the Moon?
🚨 Ask your questions now by visiting https://nasa.tumblr.com/ask.
Diane Dailey started her career at NASA in 2006 in the space station Environmental Control and Life Support Systems (ECLSS) group. As an ECLSS flight controller, she logged more than 1,700 hours of console time, supported 10 space shuttle missions, and led the ECLSS team. She transitioned to the Integration and System Engineering (ISE) group, where she was the lead flight controller for the 10th and 21st Commercial Resupply Services missions for SpaceX. In addition, she was the ISE lead for NASA’s SpaceX Demo-1 and Demo-2 crew spacecraft test flights. Dailey was also a capsule communicator (Capcom) controller and instructor.
She was selected as a flight director in 2021 and chose her call sign of “Horizon Flight” during her first shift in November of that year. She has since served as the Lead Flight director for the ISS Expedition 68, led the development of a contingency spacewalk, and led a spacewalk in June to install a new solar array on the space station. She is currently working on development of the upcoming Artemis II mission and the Human Lander Systems which will return humanity to the moon. Dailey was raised in Lubbock, Texas, and graduated from Texas A&M University in College Station with a bachelor’s degree in biomedical engineering. She is married and a mother of two. She enjoys cooking, traveling, and spending time outdoors.
Chloe Mehring started her NASA career in 2008 in the Flight Operations’ propulsion systems group and supported 11 space shuttle missions. She served as propulsion support officer for Exploration Flight Test-1, the first test flight of the Orion spacecraft that will be used for Artemis missions to the Moon. Mehring was also a lead NASA propulsion officer for SpaceX’s Crew Dragon spacecraft and served as backup lead for the Boeing Starliner spacecraft. She was accepted into the 2021 Flight Director class and worked her first shift in February 2022, taking on the call sign “Lion Flight”. Since becoming certified, she has worked over 100 shifts, lead the NG-17 cargo resupply mission team, and executed two United States spacewalks within 10 days of each other. She became certified as a Boeing Starliner Flight Director, sat console for the unmanned test flight in May 2022 (OFT-2) and will be leading the undock team for the first crewed mission on Starliner in the spring of next year. She originally is from Mifflinville, Pennsylvania, and graduated with a bachelor’s degree in aerospace engineering from The Pennsylvania State University in State College. She is a wife, a mom to one boy, and she enjoys fitness, cooking and gardening.
In 2018, our satellites captured beautiful imagery from throughout the solar system and beyond. However, some of our favorite visualizations are of this very planet. While this list is by no means exhaustive, it does capture some Earth satellite images from this year that are both visually striking as well as scientifically informative. This list also represents a broad variety of Earth’s features, as well as satellite instrumentation. Take a journey with our eyes in the sky!
Before making landfall, Hurricane Florence churned in the Atlantic for a full two weeks — making it among the longest-lived cyclones of the 2018 season. When it finally did hit land on Sep. 14, the storm devastated the southeastern U.S. coast with intense winds, torrential rains and severe flooding.
This natural-color image was acquired by MODIS on the Terra Satellite on Sep. 12, 2018.
Images like this, as well as other satellite information, were used to anticipate the impact of the storm. Our Disasters Program created flood proxy maps that were shared with the Federal Emergency Management Agency (FEMA) and the National Guard to estimate how many and which communities would be most affected by the storm, in order to help prepare recovery efforts ahead of time.
The Lake Eyre Basin covers one-sixth of Australia and is one of the world’s largest internally draining river systems. However, the rivers supported by this system are ephemeral, meaning that they only run for short periods of time following unpredictable rain — the rest of the time, the Basin is a dry, arid desert.
However, when the heavy rain comes, the basin erupts in an explosion of green. In this false-color image captured by the Operational Land Imager (OLI) on Landsat 8 on Apr. 25, 2018, you can see how the vegetation completely envelops the spaces where the water has receded. (Flood water is indicated by light blue, and vegetation is indicated by light green.)
Satellites are an excellent tool for tracking greening events that are followed by flooding. These events offer opportunities for predictive tools as well as recreation.
A Monet painting comes to life as the Chukchi Sea swirls with microscopic marine algae.
This image was captured off the Alaskan coast by OLI on Landsat 8 on Jun. 18, 2018. After the Arctic sea ice breaks up each spring, the nutrient-rich Bering Sea water mixes with the nutrient-poor Alaskan coastal water. Each type of water brings with it a different type of phytoplankton and the surface waters have just enough light for the algae to populate and flourish. The result is these mesmerizing patterns of turquoise and green.
This image represents one piece of much larger, incredibly complex ecosystem. While one would not normally associate the breaking up of sea ice with phytoplankton blooms, it is an intricate process of the phytoplankton life cycle. The size of the blooms have varied greatly from year to year, and experts are unsure why. Images like these can help scientists track the development of these blooms and link it to other environmental changes.
Sometimes fresh lava is best viewed in infrared.
This false-color image of Kilauea, captured by OLI on Landsat 8 on May 23, 2018, shows the infrared signal emitted by lava flowing toward the sea. The purple areas surrounding the glowing lava are clouds lit from below, indicating that this image was taken through a break in the clouds.
The Puʻu ʻŌʻō Kupaianaha eruption has been continuously spewing red-hot lava since 1983, making it the longest eruption at Kilauea in recorded history. However, new fissures opened up this year that forced many to evacuate the area. Hawaii’s largest lake evaporated in hours and hundreds of homes were destroyed in Vacationland and Kapoho.
Imagery, seismometers and ground-based instruments were used to track the underground movement of magma. Infrared imagery can be incredibly helpful in disasters like this when you to view data that cannot be observed with the naked eye.
Nothing quite encapsulates the destruction of a wildfire like a photo from outer space.
This image of the Woolsey Fire aftermath in Southern California was captured on Nov. 18, 2018 by the Advanced Spaceborned Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite. This false-color infrared image has been enhanced to clearly show the burned vegetation (indicated by brown) and the vegetation that survived unscathed (indicated by green).
The Woolsey Fire clearly left its mark, with almost 152 square miles (394 square km) and 88% of the Santa Monica Mountains National Recreation Area badly burned. Images like this one can assist fire managers in the area plan for recovery.
As the years go by, the Padma River grows and shrinks, twists and turns. It never has a fixed shape, and as a result, thousands of people must regularly adapt to the constant changes in the river’s 75-mile (130-km) shoreline.
This image captured on Jan. 20, 2018 by OLI on Landsat 8 depicts one of the major rivers of Bangladesh. For thirty years, scientists have been tracking the erosion of the river with satellite imagery. Combinations of shortwave infrared, near infrared, and visible light are used to detect differences year-to-year in width, depth, and shape of the river. Sometimes the river splits off, but then rejoins again later. These patterns are created by the river carrying and depositing sediment, shaping the curves of the path of water.
Monitoring the Padma River is going to become especially important as a new bridge development project advances in the Char Janajat area. Although the bridge will most certainly help shorten travel times for citizens, nobody is quite sure how the river erosion might affect the construction and vice versa.
It’s hard to believe that Harlequin Lake was once all dry land — but it only started to form once Yakutat Glacier started melting. The lake appeared at the beginning of the twentieth century, and has been growing rapidly ever since.
In this hauntingly beautiful image, captured on Sep. 21 2018 by OLI on Landsat 8, the effect of climate change is apparent — especially when compared to earlier images of the region.
Unless the climate warming starts to reverse very soon — which scientists consider very unlikely — Yakutat could be gone as soon as 2070.
Cape Town is a seaside city planted on the tip of South Africa. It’s a city known for its beaches and biodiversity — it also almost became known as the first major city to officially run out of water.
This image of Cape Town’s largest reservoir — Theewaterskloof — was acquired on Jul. 9th, 2018 by OLI on Landsat 8. By the time this photo was taken, the city’s main reservoirs stood at 55%. This was a huge increase from where it stood just six months earlier: just 13%.
The severe water shortage in the region started in 2015, only to become more threatening after three successive and unusually dry years. The entire city was preparing for Day Zero — the day the tap water would be shut off.
Despite forecasts that Day Zero would arrive in April, a combination of heavier rains and local conservation efforts restored the majority of the reservoir.
Aerosols are all around us. From the smoke from a fire, to the dust in the wind to the salt in sea spray — these solid particles and liquid droplets are always swirling in our atmosphere, oftentimes unseen.
The Goddard Earth Observing System Forward Processing (GEOS FP) model uses mathematical equations to model what is happening in our atmosphere. The inputs for its equations — temperature, moisture, wind, etc. — come from our satellites and ground sensors.
This visualization was compiled on Aug. 24, 2018 — obviously a busy day for aerosols in our atmosphere. Swirls of sea salt (indicated by blue) reveal typhoons Soulik and Cimaron heading straight towards South Korea and Japan. A haze of black carbon (indicated by red) suffuse from agricultural burning in Africa and large wildfires in North America. And clouds of dust (indicated by purple) float off the Sahara desert.
With nearly a hundred fatalities, hundreds of thousands of acres burned and billions of dollars of damage, the world watched in horror as Camp Fire grew to become the most destructive California wildfire in recorded history.
This image was captured on Nov. 8, 2018 by OLI on Landsat 8 on the same day Camp Fire ignited. It consolidates both visible light and shortwave-infrared light in order to highlight the active fire. Strong winds and dry conditions literally fanned the flames and spread this wildfire like a rash.
This image has not only become the iconic portrait for Camp Fire, it is also sobering representation of how quickly a fire can grow out of control in a short amount of time. Even from space, you can almost smell the massive plumes of smoke and feel the heat of the fires.
Whether you realize it or not, our Earth satellite missions are collecting data everyday in order to monitor environmental changes and prepare for natural disasters. If your interest is piqued by this list, head over to the Earth Observatory. The Earth Observatory updates daily with fresh, new content — brought to you by none other than our eyes in the sky.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com
This month binoculars will come in handy--to view the moon, star clusters, and a close pairing of Venus and Jupiter.
You can’t miss bright Venus in the predawn sky. This month Venus pairs up with Jupiter on the morning of November 13th.
The Leonids peak on a moonless November 17th. Expect no more than 10 meteors an hour around 3:00 a.m., the height of the shower.
The Northern and Southern sub-branches of the Taurid meteor shower offer sparse counts of about 5 meteors per hour, but slow, bright meteors are common.
The nearby November Orionids peak on the 28th. In contrast to the Taurids, the Orionids are swift. But don’t expect more than 3 meteors per hour.
The moon glides by three beautiful star clusters in the morning sky this month, and a pair of binoculars will allow you to see the individual stars in the clusters. Aim your binoculars at the Pleiades and the moon on the 5th.
Then aim at the Messier or M-35 cluster and the moon on the 7th and the Beehive cluster and the moon on the 10th.
Meanwhile, at dusk, catch Saturn as it dips closer to the western horizon and pairs up with Mercury on the 24th through the 28th.
Also, Comet C/2017 O1 should still be a binocular-friendly magnitude 7 or 8 greenish object in November. Use Polaris, the North Star as a guide. Look in the East to Northeast sky in the late evening.
Watch the full What’s Up for November Video:
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Explore the universe and discover our home planet with the official NASA Tumblr account
1K posts