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For decades, @nasa has used data from Earth-observing satellites to better understand our planet. Satellite imagery in our new book, Earth, shows the story of a 4.5-billion-year-old planet where there is always something new to see. 

RT @JimBridenstine
Congratulations to @TeamSpaceIL and @ILSpaceAgency on launching the first commercial lunar lander! This is a historic step for all nations and commercial space as we extend our collaborations beyond low-Earth orbit and on to the Moon. 

After much anticipation, Israel’s first Moon lander is ready to launch! We’ve provided @TeamSpaceIL w/ images of the Moon’s surface, use of our Deep Space Network & a small laser retroreflector. Learn more: 

RT @Dr_ThomasZ
As early as the end of this year, we could be sending experiments to fly on commercial landers to the surface of the Moon. From an instrument that'll measure the radiation environment to one that'll gather info about landing on the surface, get the details 

: the return of human spaceflight to U.S. soil.

Our @Commercial_Crew industry partners @Boeing and @spacex are on the verge of making history. First up: the March 2 liftoff of @spacex's on a demo flight. What's next: 

As we celebrate , we aim to encourage the future female workforce to consider a career path in engineering and be part of the next generation of explorers. Follow our Instagram story today to hear more 

RT @JimBridenstine
I’ll be on Fox Business with @Varneyco at 11:10am ET to discuss @TeamSpaceIL’s historic launch tonight with the first private mission to the Moon. Be sure and tune in!

RT @AstroAnnimal
Good morning to our beautiful world, and to all the beautiful people who call it home!

Just because you’re small, doesn’t mean you don’t shine bright The supermassive black holes at the centers of these merging galaxies should be outshining all of their stars, but they are being outdone by a single neutron star. Read more & shine bright: 

If you were asked to name the Moon, what would you call it? We chose Hippocamp as the name for a mysterious tiny moon around Neptune discovered by our @NASAHubble Space Telescope. Discover more about “the moon that shouldn’t be there”: 

Just because you’re small, doesn’t mean you don’t shine bright The supermassive black holes at the centers of these merging galaxies should be outshining all of their stars — but they are being outdid by a single neutron star. Read more & shine bright: 

Our flying @SOFIAtelescope has a new toy, and the results are extraordinary. With a new instrument on board, the airborne observatory is now able to study celestial magnetic fields with ground-breaking precision. Discover the latest results: 

How's the weather? Did you have a today?

Astronauts on board the @Space_Station captured this view of the Great Lakes region in mid-February, with clouds and frozen terrain as far as the eye could see: 

Welcome to a mock spacecraft where crewmembers live for 45 days & emulate a real space mission, w/ 16-hour work days & a flight-like timeline of activities. The 5th Human Exploration Research Analog Campaign has just “lifted off.” Learn more: 

Lows of -138°F (-95°C) with SW winds peaking at 37.8 mph...

Daily weather reports from Mars start today, thanks to data from our @NASAInSight lander! Follow the temperature, wind, and air pressure trends as seasons change on the Red Planet: 

Tonight, you don’t have to be a werewolf to appreciate the brightest and largest full Moon of the year. Ever wondered why they are called supermoons? Get your howl on here: 

X-ray communications? It may sound like sci-fi, but with shorter wavelengths than radio, x-ray comms could potentially send more data for the same amount of transmission power. We're set to test this on the @Space_Station: 

A discovery made by a citizen scientist is challenging our assumptions about how planetary systems evolve!A volunteer w/ our Backyard Worlds project has found that the oldest & coldest known white dwarf star is encircled by rings of dust. Learn more: 

RT @AstroAnnimal
Spacesuit maintenance…Each suit is like a small spacecraft with its own power, air and water systems which work together to maintain the precise atmosphere in which humans can live, while also protecting us from the harsh conditions of space. Pretty phenomenal design!

“Stable landslides” creep slowly and harmlessly — but can eventually turn disastrous. For the first time, our scientists have documented the transition of a stable landslide into a catastrophic collapse. Stay safe and informed: