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Milky Way’s dark matter half what we thought?
Australian astronomers say our Milky Way galaxy has only half the dark matter we thought it did. If so, it explains the shortage of Milky Way satellites.
October 13, 2014
Active moon volcanos in geologically recent times
Last volcanic activity on moon thought to be a billion years ago. Now small lava flows on moon’s dark plains suggest activity as recently as 50 million years ago.
October 12, 2014
MESSENGER spacecraft sees lunar eclipse from Mercury
The MESSENGER spacecraft, now orbiting Mercury, caught the images to make this movie of last Wednesday's lunar eclipse. See Earth and moon from Mercury!
October 11, 2014
Mapping the weather on an extreme exoplanet
Scientists using the Hubble Space Telescope have completed the first map of temperature and water vapor on a "hot Jupiter," an exoplanet called WASP 43b.
October 9, 2014
First named feature on a comet!
Scientists have named one of the largest boulders on Rosetta’s comet after an Egyptian pyramid.
October 9, 2014
Join EarthSky’s Deborah Byrd at online viewing of total lunar eclipse
Slooh.com invites stargazers worldwide for an online viewing of the total eclipse of the moon on October 8. Deborah Byrd will be on hand as a special guest.
October 7, 2014
Is the October 8, 2014 full moon a supermoon?
There's disagreement on whether the October 8, 2014 full moon should be called a supermoon. If it is one, it's a super Hunter's Blood Moon ... in eclipse.
October 7, 2014
Mega flares from a mini star
You've heard of X flares from our sun? This mini star's biggest flare - seen in April, 2014 - was 10,000 times bigger than the biggest known solar X flare.
October 2, 2014
What is the moon’s Ocean of Storms?
Oceanus Procellarum - the lunar Ocean of Storms - is a vast volcanic plain, thought to have been created in an ancient asteroid impact. More recently, scientists came to believe it formed via processes within the moon itself.
October 2, 2014
U.S. and India to collaborate on Earth and Mars missions
Both NASA and the Indian Space Research Organization placed spacecraft in orbit around Mars last month. They'll join forces on an Earth-orbiting mission set for 2020.
October 1, 2014
