Astrophysics

Science

Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn’t have one, my understanding crumbled. What exactly causes magnetic fields in planets?

Cosmology, Science

The Real Reality Show: Matter and Energy

Cosmology

Earth might have hairy dark matter

Exoplanets, Planets

Mapping winds on alien worlds

Robotic Spaceflight

Swift spots its thousandth gamma-ray burst

Science

Weird Object: Milky Way Antimatter Fountain

Exotic Objects, Stars

Supernova twins

Galaxies

Whopping galaxy cluster spotted with help of NASA telescopes

Exotic Objects

Black hole has major flare

Galaxies, Robotic Spaceflight

Hubble spies Big Bang frontiers

Science

Scientist gives “outlaw” particles less room to hide

Stars

First discovery of a magnetic field in a normal delta Scuti star