The virtual exoplanet tour has a cool 360-degree visual display. Since launching in late 2017, it's had over a million YouTube views. Check it out here.
Our Milky Way galaxy is known to have a supermassive black hole at its heart. Could more supermassive black holes be lurking unseen at our galaxy's outskirts?
Why did ESA's director of science say Gaia's observations are "redefining the foundations" of astronomy? Also, links to virtual reality resources made possible by Gaia, available for you to explore.
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.
It was thought Mars' 2 small moons - Phobos and Deimos - might be captured asteroids. But new work suggests a violent birth for the moons during a colossal impact.
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.
For weeks, people have searched for this post more than any other at EarthSky. No, there won't be a green moon on April 20, 2018. It's a joke, y'all, with its roots (ahem) in cannabis culture. :-)