The Death of Andromeda
The Andromeda Galaxy is not disappearing, exploding or running out of stars. But it may be entering something astronomers recognize as a kind of galactic old age: it is gradually losing the ability to...
18 Okt 20min
The Moon That Sends Us Its Ocean
Saturn has a moon with a hidden ocean, and that ocean is spraying samples of itself into space.Enceladus is only about 310 miles wide, but beneath its brilliant shell of ice lies a global saltwater oc...
11 Okt 34min
A Black Hole Is Pointing at Us
A black hole in our galaxy appears to be aiming a relativistic jet almost directly toward Earth. That sounds like a reasonably good opening line for October.The object, IRAS 18293−0941, is a binary sy...
4 Okt 29min
There Was a Planet That Swallowed a Moon
What if Venus once had a moon, and then destroyed it?A new study suggests that under plausible conditions, an ancient Venusian moon could have slowly migrated inward, crossed the Roche limit and ultim...
27 Sep 32min
Dyson Spheres: The Heat Has to Go Somewhere
What if the first evidence of an advanced alien civilization isn’t a message, but a star whose energy books don’t quite balance?This week, we explore the strange history and surprisingly real science ...
13 Sep 23min
Rivers Through the Dark
Galaxies carry the evidence of their past. When the Milky Way captures a dwarf galaxy or tears apart a globular cluster, it leaves behind long, ghostly ribbons of stars called stellar streams. These s...
6 Sep 27min
Little Red Dots at Cosmic Dawn
The James Webb Space Telescope has uncovered hundreds of tiny red points in the early universe. They are extraordinarily compact, unexpectedly bright and strangely quiet in the X-ray and radio wavelen...
30 Aug 27min
Did the Milky Way Flip?
The Milky Way looks permanent from our place inside it, a great band of stars stretching across the night sky. But new research suggests our galaxy may once have been oriented in a completely differen...
16 Aug 35min
