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NASA’s first sample return mission to an asteroid launches Thursday at 7:05 p.m. EDT (2305 UTC). Links here to follow the mission online.
Terzan 5 looks like an ordinary globular cluster, but has stars of hugely different ages. Some of its stars are similar to the Milky Way’s most ancient stars.
Asteroid 2016 RB1 will pass safely – at about the distance of our geosynchronous satellites – on September 7, 2016.
Brown dwarfs are like stars, but too small to ignite fusion in their cores and so shine as stars do. If you saw one, it wouldn’t be brown. It’d be magenta.
Plus more cool stuff from the Juno spacecraft’s August 27 closest-yet flyby of Jupiter.
The Dawn spacecraft is still orbiting Ceres. It went into an extended mission mode on July 1. Some mission highlights and current thinking, here.
Cool video! On September 1, the Earth-orbiting Solar Dynamics Observatory caught both Earth and the moon crossing in front of the sun.
With only a month left of the Rosetta mission, the Philae comet lander has been found wedged into a dark crack on Comet 67P/Churyumov–Gerasimenko.
As the first human ancestors walked the Earth, our galaxy’s central black hole might have been in the process of blasting away most of the galaxy’s normal matter.
No injuries in Thursday’s explosion on a SpaceX launch pad at Cape Canaveral. But Facebook’s planned satellite is no more.
Moon and Mercury shortly before sunrise
Meteor over Hidden Lake, Montana