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LIVE NOW: Join @NASASun experts on the one-year anniversary of the historic #Eclipse2017! Hear them discuss new science data, highlight the public impact of this celestial event & answer all your questions. Submit your questions by using #askNASA. Watch: https://www.pscp.tv/NASA/1mnxeomplzNGX …pic.twitter.com/koHz5D4iag

Where were you one year ago today? Did you witness the 2017 Eclipse Across America with your own eyes and a pair of eclipse glasses? Share images showing how you took part in this celestial event by using #Eclipse2017.pic.twitter.com/mS7P5AYzZ7

Today marks 1 year since #Eclipse2017 Across America & we’re celebrating with a Science Chat to discuss new data & the public impact of this celestial event experienced by millions. Join @NASASun experts live at 10:30am ET: https://www.nasa.gov/live  Q? #askNASApic.twitter.com/V0yzFjVv3R

Each visible speck of a galaxy in this @NASAHubble image is home to countless stars. Not only are galaxy clusters ideal subjects for the study of dark matter and dark energy, but they also allow for the study of farther-flung galaxies. Take a closer look: https://go.nasa.gov/2N7AztB pic.twitter.com/rwEXGQQsHx

Oregon & California are seen by our @NASAEarth satellites as #wildfire activity grows in size & intensity. Fires have been breaking out due to weather conditions which favor them and copious amounts of very dry fire fuel in timber, grasses & underbrush: https://go.nasa.gov/2PpR1XW pic.twitter.com/eEHXtA5E1v

Tomorrow marks 1 year since #Eclipse2017 Across America & we’re celebrating with a Science Chat to discuss new data & the public impact of this celestial event experienced by millions. Join @NASASun experts on Facebook Live Tues. at 10:30am ET: https://go.nasa.gov/2N6FISK  Q? #askNASApic.twitter.com/DacfUNW1UM

Want to follow when we're talking to more than 40 of our satellite missions near Earth? Now you can! Thanks to a small team of interns, you can get an inside look into the 15 antennas across the globe that help us collect science data from our satellites: https://go.nasa.gov/2nQ6B2m pic.twitter.com/LtYjrGQBst

Nearly two million acres are burning in the United States. Our @NASAEarth-observing satellites capture this view of burning areas (marked in red) and smoke plumes from the #wildfire areas across the western half of the country. Take a closer look: https://go.nasa.gov/2nV4B98 pic.twitter.com/h3h9OUdXDD

In the darkest and coldest parts of the Moon's poles, ice deposits have been found. At the southern pole, most of the ice is concentrated at lunar craters, while the northern pole’s ice is more widely, but sparsely spread. More on this @NASAMoon discovery: https://go.nasa.gov/2N1weIE pic.twitter.com/ZkVFyKrOB6

Exploration to the Moon and Mars will expose @NASA_Astronauts to 5 known hazards of spaceflight, including distance from Earth. Discover how we'll protect humans in space when there is no turning back and no resupply: https://nasa.tumblr.com/post/177208838784/distance-hazard-far-from-home …pic.twitter.com/UWnuDCiJZJ

Halfway there! Our @NASAInSight spacecraft is midway through its journey to Mars for our 1st mission to study the Red Planet's deep interior. Due to land on Nov. 26, the spacecraft’s instruments and cameras have been tested and are working well. Details: https://go.nasa.gov/2MnUubJ pic.twitter.com/6GTTsOZP9H

It's #NationalRadioDay! Tune in to America's space radio station with new rock discovery, @ThirdRockRadio. Listen: http://thirdrockradio.rfcmedia.com/ pic.twitter.com/m9Neq0CT0d

What’s out there? Planets--and lots of them! Thanks to @NASAKepler’s survey of the cosmos, we now know there are more planets than stars in our galaxy! What does the discovery mean to you? Share your thoughts using the hashtag #MorePlanetsThanStars: http://go.nasa.gov/MorePlanetsThanStars …pic.twitter.com/3GZFRn54Xc

The Arctic permafrost has been expected to gradually thaw and release atmospheric gases. But it may actually be sped up by instances of a relatively little known process called abrupt thawing that takes place under a certain type of Arctic lake. Details: https://go.nasa.gov/2N203J8 pic.twitter.com/8sl1bVaBV7