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Family portrait of Mars dust devils
A telescopic camera on a Mars orbiter caught these 8 dust devils in a single afternoon.
November 6, 2015
Tune in to second spacewalk live November 6
If you missed last week’s spacewalk, here’s another chance. The same two ISS astronauts are performing their second spacewalk today (November 6, 2015), starting at 7:10 a.m. EST (1210 UTC).
November 6, 2015
Whoa! That’s a big galaxy cluster
The cluster's mass is a quadrillion times that of our sun - making it the most massive known cluster that far back in space and time.
November 4, 2015
Peeling back layers of a warm Neptune
Astronomers have discovered an immense hydrogen cloud streaming off a Neptune-sized exoplanet. The planet's atmosphere is evaporating, say scientists.
November 3, 2015
Scientists to monitor skies for UFOs
UFODATA wants to make UFO studies a more rigorous science and deploy a global network of automated surveillance stations to watch for UFOs full-time.
November 2, 2015
Update: 2015 TB145 likely a dead comet
Last week heralded as largest known asteroid to pass Earth until 2027. Swept within 1.3 times the moon's distance on October 31. Now thought to be a comet!
October 31, 2015
Black hole flares from puzzling coronas?
A black hole may flare when its corona - a mysterious source of highly energetic particles - launches away from the hole at close to 20 percent of light speed.
October 30, 2015
Cassini flyby of Saturn moon Enceladus
Cassini has swept through the towering plume of ice, water vapor and organic molecules spewing from Saturn's moon, Enceladus. Seven key facts, here.
October 28, 2015
Watch spacewalk live October 28
Watch two NASA astronauts make their first spacewalk outside ISS today, beginning at 8:10 a.m. EDT (12:10 UTC) until about 2:40 p.m. EDT (18:10 UTC).
October 28, 2015
New Horizons aiming toward next target
On Sunday, the craft that explored Pluto successfully executed the 2nd of 4 maneuvers designed to aim it toward a small Kuiper Belt object called 2014 MU69.
October 27, 2015
