decimatethestars-blog

Latest Posts by decimatethestars-blog

Each year we hold a Day of Remembrance. Today, Jan. 25, we pay will tribute to the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other NASA colleagues who lost their lives while furthering the cause of exploration and discovery. 

#NASARemembers

Learn more about the Day of Remembrance HERE. 

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.  

Simple Jupiter Photo with 4 moons - For more images of the cosmos Click Here

Io floating over Jupiter with Ganymede’s shadow [2058x2172] - For more images of the cosmos Click Here

Look up at the super blue blood full moon Jan. 31 – here's what you'll see and why

by Shannon Schmoll

During the early hours of Jan. 31, there will be a full moon, a total lunar eclipse, a blue moon and a supermoon – all at the same time. None of these things is really all that unusual by itself. What is rare is that they’re happening all together on one day.

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TODAY IN HISTORY: Apollo 16 astronauts Charlie Duke and John Young train for the Moon at Kennedy Space Center in Florida, November 30, 1971.

(NASA)

What's Up - December 2017

What’s Up For December? Geminid and Ursid meteor showers & winter constellations!

This month hosts the best meteor shower of the year and the brightest stars in familiar constellations.

The Geminds peak on the morning of the 14th, and are active from December 4th through the 17th. The peak lasts for a full 24 hours, meaning more worldwide meteor watchers will get to see this spectacle.

Expect to see  up to 120 meteors per hour between midnight and 4 a.m. but only from a dark sky. You’ll see fewer after moonrise at 3:30 a.m. local time.

In the southern hemisphere, you won’t see as many, perhaps 10-20 per hour, because the radiant never rises above the horizon.

Take a moment to enjoy the circle of constellations and their brightest stars around Gemini this month.

Find yellow Capella in the constellation Auriga. 

Next-going clockwise–at 1 o'clock find Taurus and bright reddish Aldebaran, plus the Pleiades. 

At two, familiar Orion, with red Betelguese, blue-white Rigel, and the three famous belt stars in-between the two.   

Next comes Leo, and its white lionhearted star, Regulus at 7 o'clock.

Another familiar constellation Ursa Major completes the view at 9 o'clock.

There’s a second meteor shower in December, the Ursids, radiating from Ursa Minor, the Little Dipper. If December 22nd  and the morning of December 23rd are clear where you are, have a look at the Little Dipper’s bowl, and you might see about ten meteors per hour. Watch the full What’s Up for December Video: 

There are so many sights to see in the sky. To stay informed, subscribe to our What’s Up video series on Facebook. Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.   

The faint rings of Uranus, shot in 1986, are made of countless fragments of water ice containing radiation-altered organic material.

Credit: NASA/JPL/Michael Benson, Kinetikon Pictures

Bioluminescent Plankton

Scientists have only recently discovered that this type of plankton glows when they are moved because of stress - ironic when you consider how relaxing the sight of the shimmering waves are in the dark night. Bioluminescence is used as a defence mechanism to draw predators towards the creature trying to eat the plankton. The tiny flashes of light also disorientate and surprise the predator.

These tiny organisms produce light using a chemical called luciferin. The process of creating a bioluminescent light, which is simply light produced within a living creature, differs between organisms. Some need a particular food or another creature for the effect to happen. But this type of plankton, called dinoflagellates, produce luciferin on their own. The light the tiny plankton emit is called ‘cold light’, meaning less than 20% of the light generates heat.

Huge areas of the ocean can become populated by glowing plankton but the effect is especially common in warm-water lagoons that have narrow openings to the sea. This causes the plankton to gather and become trapped, causing the water to turn orange.

Image credit: Will Ho, Kin Cheung, Landscapes Maldives & eyegami

Source: Kuoni

This illustration shows the cosmic epochs of our Universe from the Big Bang to the Present. The position of galaxy A1689-zD1 is shown as an example of a particularly early forming and distant galaxy. 

Image credt: NASA, ESA, and A. Feild (STScI).

Kepler-186f, the first Earth-size Planet in the Habitable Zone

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Aurora over Svolvear, Norway

Image Credit: Max Rive

The Hubble Ultra-Deep Field is an image of a small region of space in the constellation Fornax, containing an estimated 10,000 galaxies.

Image credit: NASA/ESA/Hubble

Apollo 13 - Mission Control by NASA on The Commons

Beautiful Saturn, observed by the Cassini probe on November 27, 2013.

(Ian Regan)

Solar system - Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto

Credit: NASA, ESA, SDO, Messenger, Mariner 10, Apollo 17, Rosetta, Hubble, Cassini, Voyager 2 & New Horizons

Astonishing Saturn, observed by the Cassini space probe on November 27, 2013.

Colorful Moon Mosaic 

Credit: Noel Carboni

Boston Dynamics has shown off its new version of SpotMini, but now it’s also catching us up with its bipedal Atlas bot, the most humanoid of its creations. Atlas can now jump from elevated block to elevated block, and do a complete about-face in the air. It can leap pretty high, and also do a backflip – and then celebrate its backflipping ability. –

New Photographs From The European Space Agency

Dazzling Photos Let You Orbit the Earth with Astronaut Tim Peake

British astronaut Tim Peake taking a selfie. That Union Flag is the first of its kind to have ever experienced the vacuum of space.

Colors of Earth

When we think of our globe from a distance, we generally visualize two colors: blue and green. Water and land. Mostly water, consequently, our planet’s nickname of the blue marble.

Traveling around the globe every 90 minutes covering millions of miles with a focused lens on our beautiful planet from 250 miles above, I’ve captured many beautiful colors beyond blue and green that showcase Earth in new and interesting ways. Some colors are indicative of nature like desert sands and weather like snow. Other colors tell stories of Earth’s climate in bright splashes of yellows and greens of pollen and muted grey tones and clouded filters of pollution.

Blue and green still remain vivid and beautiful colors on Earth from the vantage point of the International Space Station, but here are some other colors that have caught my eye from my orbital perspective.

African violet

Bahamas blues

Tropical in Africa

Yellow desert

Orange in Egypt

Red surprise 

Snow white 

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