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Pluto has mysterious, floating hills
The hills are thought to be fragments of Pluto's rugged uplands that have broken away and are being carried along the flow paths of glaciers.
February 8, 2016
Mars’ west quadrature on February 7
At west quadrature on February 7, 2016, the red planet appears 90% illuminated as seen through a telescope. Fantastic time to see Mars is just ahead.
February 7, 2016
Violent, head-on crash created moon
On this episode of EarthSky News, an update on the idea that the early Earth collided with a Mars-sized proto-planet to make the moon. That and more. Join us.
February 4, 2016
Is our Milky Way galaxy a zombie?
An astrophysicist says our Milky Way may already be dead, but is still going. Why do galaxies stop forming stars, change their shape and fade away?
February 4, 2016
Darn. No caverns on Rosetta’s comet
Low density of comets suggested there might be huge empty caves honeycombed throughout their interiors. Maybe true for some, but not so for Rosetta's comet.
February 4, 2016
New image of enormous black hole blast
It shows a giant jet of particles extending 300,000 light-years, blasting from a black hole at the center of a distant galaxy.
February 3, 2016
Watch cosmonauts’ spacewalk today
NASA TV will broadcast live coverage of a 5.5-hour spacewalk by two Russian cosmonauts aboard ISS beginning at 7:30 a.m. ET (1230 UTC) Wednesday.
February 3, 2016
Saturn ring density is an illusion
The most opaque parts of Saturn's rings - the parts that look most dense - don't always contain more material. Another great Saturn mystery!
February 3, 2016
What are the odds aliens exist?
The star KIC 8462852 continues to display strange behavior, baffling astronomers and prompting speculation - and these musings - about advanced aliens.
February 3, 2016
Monster gas cloud boomerangs back to us
Astronomers say the Smith Cloud will plow into the Milky Way in about 30 million years and ignite a spectacular burst of star formation.
February 2, 2016
