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Sun pillar over England
A sun pillar, visible earlier this month before and up until dawn, from the Northumberland coast in northeast England.
April 12, 2017
New views of Uranus’ auroras and rings
NASA just released a new composite image combining Voyager 2 and Hubble data to show both the rings and auroras of Uranus.
April 12, 2017
Southern lights over South Pole
Hunter Davis sent these photos from Antarctica this morning of the aurora australis - or southern lights - now appearing over Earth's South Pole.
April 11, 2017
Moon follows Jupiter April 11-12
Jupiter rises before the moon. Then, as Earth spins under the sky, the moon chases Jupiter for the remainder of the night.
April 11, 2017
The perilous process of star birth
It isn't a supernova or dying star. It's an explosion during star birth and provides insights into the sometimes-fierce relationship among sibling stars.
April 10, 2017
Watch for Venus before dawn
While watching Jupiter and the moon around April 9-11, don't forget Venus! It passed between us and the sun on March 25 and now blazes in the east before dawn.
April 10, 2017
Full moon near Jupiter April 10-11
Full moon comes on April 11 at 6:08 UTC. For the Americas, that means full moon happens tonight. As the 1st full moon of northern spring, it fixes the date of Easter Sunday.
April 10, 2017
New ideas on dinosaur evolution
Basic facts that paleontologists thought they'd known for 130 years - about dinosaurs' family trees - might turn out to be wrong.
April 9, 2017
Jupiter and its moons
The 4 largest moons of Jupiter - called the Galilean satellites - are Io, Europa, Ganymede and Callisto. Recent photos here.
April 9, 2017
Molecular clocks track human evolution
How do scientists figure out when evolutionary events happened? It turns out our DNA is a kind of molecular clock, keeping time via genetic changes.
April 9, 2017
