Kamikaze galaxy explodes after diving into the Milky Way 

Distant dwarf galaxy Hercules’s eccentric orbit of the Milky Way ripped it apart, scattering its stars…

China launches a space station and wants an even bigger one

Tiangong-2 is another step in the long march towards China's goal of a permanent space station…

First glimpse of a black hole being born from a star’s remains

Hubble has caught a red supergiant star flaring up and disappearing – probably because it was…

Follow the life of the last man on the moon

Eugene Cernan's career was by any measure a triumph but a new profile spares a thought…

Pluto may have tipped over when Charon tugged at its heart

The iconic heart-shaped feature on Pluto is so dense that it could have led to the…

Pluto may have tipped over when Charon tugged at its heart

The iconic heart-shaped feature on Pluto is so dense that it could have led to the…

Our galaxy’s impossible collision could break gravity

The ballistics of galactic shrapnel show that the Milky Way has already crashed into its giant…

What came before the big bang?

Has the universe existed forever? Or was there something before it? To find out, we need…