Launched last week, TESS will scan 200,000 close and bright stars, seeking new planets and possibly livable worlds. Here's a roundtable discussion with 2 scientists on the TESS mission.
What's the latest date that measurable snow has fallen in different parts of the United States? Check this interactive map from NOAA to find your record latest snow.
Humans have been speculating about their existence for thousands of years, but ours is the 1st generation to know, with certainty, that exoplanets are really out there.
When NASA first started planning the Kepler mission, no one knew if the universe held any planets outside our solar system. Thousands of exoplanets later, the search enters a new phase.
The arcs you see at the center of this Hubble Space Telescope image are created by the light of distant galaxies, distorted to form what's called an "Einstein ring."
Members of the EarthSky community - including scientists, as well as science and nature writers from across the globe - weigh in on what's important to them.