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APOD: 2016 April 20 - Galaxy Einstein Ring

via APOD: 2016 April 20 – Galaxy Einstein Ring

Explanation: Can one galaxy hide behind another? Not in the case of SDP.81. Here the foreground galaxy, shown in blue in an image taken by the… 128 more words

Nasa

All-sky search for long-duration gravitational wave transients with LIGO

It’s now about 7 weeks since the announcement, and the madness is starting to subside. Although, that doesn’t mean things aren’t busy—we’re now enjoying completely new forms of craziness. 1,177 more words

LSC

Light Pillars Over Alaska

What’s happening behind those houses? Pictured here are not auroras but nearby light pillars, a nearby phenomenon that can appear as a distant one. 159 more words

Science

Comet 67P From Spacecraft Rosetta

Spacecraft Rosetta continues to circle and map Comet Churyumov-Gerasimenko. Crossing the inner Solar System for ten years to reach the vicinity of the comet in 2014, the robotic spacecraft continues to… 161 more words

Science

Periodic Table - Where Your Elements Came From

The hydrogen in your body, present in every molecule of water, came from the Big Bang. There are no other appreciable sources of… 202 more words

Science

Wright Mons In Colour

Informally named Wright Mons, a broad mountain about 150 kilometers across and 4 kilometers high with a wide, deep summit depression is featured in… 190 more words

Science

Earthset From The Lunar Reconnaissance Orbiter

On the Moon, the Earth never rises — or sets. If you were to sit on the surface of the Moon, you would see the Earth just hang in the sky. 184 more words

Science