Fifty grams of plutonium-238 — the stuff that powers many deep-space missions, such as the New Horizons mission to Pluto…
Mars Orbiter Catches a Crater Full of Cracks
In a decidedly wintry-looking scene, frost-filled fractures fills a crater near the north pole of Mars — as observed by…
Astronauts Ring In New Year from Space (Video)
NASA astronauts Scott Kelly and Tim Kopra and British spaceflyer Tim Peake have beamed home a special New Year’s video…
Russia’s Monkeys-to-Mars Mission Draws PETA Protest
The word from Russia is that the country wants to send monkeys to the Red Planet by 2017. But waving…
Close and far moons in 2016
This year’s 14 lunar apogees (far moons) and 13 lunar perigees (near moons). We also share a secret with you…
Comet Catalina Tails
A new year’s treat for binoculars, as 2016 begins Comet Catalina (C/2013 US10) now sweeps through planet Earth’s predawn skies…
Dawn Journal: Science on Ceres
The Dawn mission is developing humankind’s most intimate portrait ever of a dwarf planet. Mission Director and Chief Engineer Marc…
WSH After Hours – What to Expect in 2016
https://www.youtube.com/watch?v=Jg7LxPgjmN0 Published on Dec 18, 2015 Post (WSH or Weekly Space Hangout) show discussion of the Universe Today Weekly Space…
The diversity of stellar halos in massive disk galaxies
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A Physicist Dreams Of Catching Dark Matter In The Act
Hold out your hand for a century, and 100 million particles of dark matter will pass through each second without…
Telescopically 