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Tiny galaxy is Milky Way’s newly-discovered neighbor
A tiny, isolated dwarf galaxy almost 7 million light years away, with only one ten-thousandth of the mass of our Milky Way.
December 26, 2014
ISS astronauts send Christmas greetings to the world
Expedition 42 Commander Barry Wilmore and Flight Engineer Terry Virts send greetings and talk a little about their own Christmas Day in space.
December 25, 2014
Wonderful evening sky! Best moon and Venus photos
Showing once again that we all live under one sky ... the moon and Venus on December 22, 2014.
December 22, 2014
Comet Finlay is in outburst!
With a small 'scope or large binoculars, you can catch Comet Finlay. It'll be near Mars on December 23 and 24. Cool photo opportunity for those equipped to catch it!
December 18, 2014
Voyager spacecraft rides tsunami wave in interstellar space
Listen to how these waves cause surrounding ionized matter to ring like a bell. You’ve never heard anything from farther away ...
December 17, 2014
Questions of life on Mars revive with methane spike
Curiosity rover has now measured a dramatic spike in methane, an organic chemical, in the Martian air, plus other organic molecules in a Martian rock.
December 16, 2014
Rosetta’s comet fuels debate on origin of Earth’s oceans
There's three times the concentration of deuterium-enriched water (heavy water) in the vapor from Rosetta's comet as in the water on Earth.
December 11, 2014
Buckyballs in space born in molecular striptease?
Oo la la! Big organic compounds called PAHs may "strip" to create buckyballs in space.
December 11, 2014
Mars’ Mount Sharp built of lake sediments?
The Curiosity rover on Mars is exploring the base of Mount Sharp, within the Gale Crater. Did the crater hold a series of lakes? Did lake sediments create the mountain?
December 11, 2014
Asteroid 2014 UR116 is no threat to Earth
Calculations by NASA and Harvard say the closest the asteroid will get to Earth is about 2.7 million miles - over 10 times the moon's distance - in April 2047.
December 10, 2014
