Sign Up for Our Amazing Newsletter!
A daily update by email. Science news, great photos, sky alerts.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
January 31 lunar eclipse: What scientists can learn
The lunar eclipse January 31 offers scientists a chance to see what happens when the surface of the moon cools quickly.
January 25, 2018
Scientist proposes yet another new definition of a planet
What's a planet? What's a dwarf planet? What's a brown dwarf? In recent years, astronomers have grappled with these definitions. The newest proposal comes from Johns Hopkins.
January 24, 2018
Hubble Telescope finds substellar objects in Orion Nebula
Yes, the Orion Nebula is a star factory, but a new deep survey has revealed 17 brown dwarf companions to red dwarf stars, a brown dwarf pair, a brown dwarf with a planetary companion plus ... 3 giant planets.
January 23, 2018
Saturn moon Titan has a sea level
A new topographic map of Titan, plus a new study showing that Titan's seas lie at an average elevation - a sea level - just as Earth's do.
January 18, 2018
How massive can neutron stars be?
Settling a long debate, astrophysicists at Goethe University Frankfurt now say neutron stars can't exceed the mass of 2.16 suns.
January 18, 2018
Supercomputer insights on mysterious black hole jets
Scientists used the Blue Waters supercomputer to show that a black hole's relativistic jets and accretion disk both may be spinning - and precessing over time - around an axis separate from the black hole itself.
January 17, 2018
Zooming star points to black hole in globular star cluster
Globular star clusters contain our galaxy's most ancient stars. Astronomers didn't expect to find a 4-solar-mass black hole in one, but ... voila!
January 17, 2018
Our Milky Way as a “melting pot”
Where do stars we see at night come from? Newly confirmed streams of stars - thought to be coming to our Milky Way from other galaxies - suggest not all Milky Way stars were born here.
January 14, 2018
Astronomers detect whirlpool movement in earliest galaxies
Astronomers looked back to a time only 800 million years after the Big Bang and found whirlpool shapes in small, very young galaxies.
January 14, 2018
A 3D journey through the Orion Nebula
Astronomers and visualization specialists at NASA have just released this unprecedented, 3-dimensional, fly-through view of the Orion Nebula, a nearby star-forming region.
January 12, 2018
