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The Invisible Network: A New NASA Podcast
We sit on the precipice of a golden age of space exploration — a renaissance of space science and technology. Every day, our missions send millions of bits of data to Earth, unraveling long-held mysteries about the universe, our solar system and even our own planet. But what makes it all possible?
Today we debut a new, limited edition podcast called “The Invisible Network.” It brings you a side of NASA you may have never seen or heard of before — oft overlooked technologies crucial to spaceflight and humanity’s ambitions among the stars.
Communications is the vital link between Earth and space. A collection of far-flung ground stations enabled the Apollo missions: our first steps on the Moon; the Voyager missions: our first brushes with interstellar space; and supported the earliest space and Earth science missions, expanding our knowledge of the stars and of ourselves.
Today, our communications networks are vastly different than those that supported Apollo. Tomorrow’s networks will be even more advanced.
“The Invisible Network” explores technological innovations guiding us into the future. These seemingly un-sexy feats of engineering will allow us to return to the Moon, journey to Mars and venture ever-further into the unknown.
Artist’s rendering of the upcoming Orion missions.
Our podcast’s title, "The Invisible Network," comes from author and former NASA engineer Sunny Tsiao’s book, “Read You Loud and Clear,” published in 2008. Tsiao notes that our communications and tracking programs are often described as “invisible.” Infrastructures, he writes, are seldom recognized, except when they fall short.
If our networks are invisible, perhaps it’s because they work so well.
We hope you’ll join us on our journey into The Invisible Network. Subscribe to the show and share us with a friend. For more information visit nasa.gov/invisible or nasa.gov/scan.
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Launching the Future of Space Communications
Our newest communications satellite, named the Tracking and Data Relay Satellite-M or TDRS-M, launches Aug. 18 aboard an Atlas V rocket from our Kennedy Space Center in Florida. It will be the 13th TDRS satellite and will replenish the fleet of satellites supporting the Space Network, which provides nearly continuous global communications services to more than 40 of our missions.
Communicating from space wasn’t always so easy. During our third attempt to land on the moon in 1970, the Apollo 13 crew had to abort their mission when the spacecraft’s oxygen tank suddenly exploded and destroyed much of the essential equipment onboard. Made famous in the movie ‘Apollo 13’ by Ron Howard and starring Tom Hanks, our NASA engineers on the ground talked to the crew and fixed the issue. Back in 1970 our ground crew could only communicate with their ground teams for 15 percent of their orbit – adding yet another challenge to the crew. Thankfully, our Apollo 13 astronauts survived and safely returned to Earth.
Now, our astronauts don’t have to worry about being disconnected from their teams! With the creation of the TDRS program in 1973, space communications coverage increased rapidly from 15 percent coverage to 85 percent coverage. And as we’ve continued to add TDRS spacecraft, coverage zoomed to over 98 percent!
TDRS is a fleet of satellites that beam data from low-Earth-orbiting space missions to scientists on the ground. These data range from cool galaxy images from the Hubble Space Telescope to high-def videos from astronauts on the International Space Station! TDRS is operated by our Space Network, and it is thanks to these hardworking engineers and scientists that we can continuously advance our knowledge about the universe!
What’s up next in space comm? Only the coolest stuff ever! LASER BEAMS. Our scientists are creating ways to communicate space data from missions through lasers, which have the ability to transfer more data per minute than typical radio-frequency systems. Both radio-frequency and laser comm systems send data at the speed of light, but with laser comm’s ability to send more data at a time through infrared waves, we can receive more information and further our knowledge of space.
How are we initiating laser comm? Our Laser Communications Relay Demonstration is launching in 2019! We’re only two short years away from beaming space data through lasers! This laser communications demo is the next step to strengthen this technology, which uses less power and takes up less space on a spacecraft, leaving more power and room for science instruments.
Watch the TDRS launch live online at 8:03 a.m. EDT on Aug. 18: https://www.nasa.gov/nasalive
Join the conversation on Twitter: @NASA_TDRS and @NASALasercomm!
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com