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Gaia’s 2nd data release: 1.7 billion stars!
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.
April 26, 2018
Watch thousands of asteroids orbiting our sun
Both NASA and ESA space missions have just released new videos plotting the orbits of tens of thousands of asteroids (and comets) orbiting our sun.
April 26, 2018
How TESS will hunt for alien worlds
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.
April 22, 2018
New study suggests violent origin for Mars’ moons
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.
April 19, 2018
TESS planet hunter on its way
"It’s the beginning of a new era of exoplanet research."
April 19, 2018
Exoplanets: Worlds orbiting distant stars
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.
April 19, 2018
See it! Moon sweeps past Venus
Wonderful photos from the EarthSky community of the moon's sweep this week past the brightest planet, Venus.
April 18, 2018
Green moon on April 20, 2018? Nah
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. :-)
April 18, 2018
The search for the sun’s lost siblings
Our sun's sibling stars could be scattered across the sky. Astronomers are sifting through newly released data in the GALAH Survey - a galactic archaeology survey - hoping to find them.
April 17, 2018
Scientists seeking continuous gravitational waves
Scientists 1st observed gravitational waves from merging black holes. Now they're targeting a different gravitational wave signal: a long continuous waveform from a rapidly spinning neutron star.
April 17, 2018
