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Speed of light
Manuel Dietrich titled this photo Speed of Light. He captured it in the Black Forest of southwest Germany.
January 18, 2017
Hubble spies exocomets’ plunge into star
Interstellar forecast for a nearby star: Raining comets! The Hubble Space Telescope has discovered doomed, wayward comets plunging into the star HD 172555.
January 17, 2017
Spot elusive Mercury before dawn
On January 19, 2017, Mercury will be at greatest elongation. That means it's now nearly at its farthest from the sun on our sky's dome for this morning apparition. Watch for it!
January 17, 2017
Vesta, brightest asteroid, brightest for 2017
If you've never spotted an asteroid, now would be a good time to try. Vesta's 2017 opposition is around now. Guy Ottewell provides charts and explains more.
January 16, 2017
Waning Venus
Between now and late March, when Venus flies between us and the sun - thereby entering our morning sky - those with telescopes will see Venus wane, like a little waning moon.
January 15, 2017
Seeking Alpha Centauri’s unseen planets
A new agreement between the European Southern Observatory and Breakthrough Initiatives will let ESO's Very Large Telescope seek planets in the star system next door.
January 14, 2017
Forensic science looks at human evolution
The reach of forensic science’s is being extended back from crime scenes into prehistory to help unlock the mysteries of human evolution.
January 14, 2017
Into the storm
Manish Mamtani was coming back from Yellowstone National Park in late 2016, when he encountered this storm on the road ahead.
January 14, 2017
See it! First full moon of 2017
In the Northern Hemisphere, the January full moon is sometimes known as the Wolf Moon. Howl at these awesome photos of the January's full moon from EarthSky friends around the world.
January 13, 2017
Watch 2017’s 2nd spacewalk Friday
ISS astronauts will work on a complex upgrade to the station’s power system during the January 13, 2017 spacewalk. Spacewalk begins around 7 a.m. EST (1200 UTC) and is expected to last about 6 hours.
January 13, 2017
