How bad is the radiation on Mars?

Human exploration of Mars has been ramping up in the past few decades. In addition to the eight active missions on or around the Red Planet, seven more robotic landers, rovers and orbiters are scheduled to be deployed there ...

How do stars go rogue?

Rogue stars are moving so quickly they're leaving the Milky Way, and never coming back. How in the universe could this happen?

Does dark matter cause mass extinctions and geologic upheavals?

Research by New York University Biology Professor Michael Rampino concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological ...

DRAGNs in the sky

A radio galaxy is a galaxy that emits large amounts of radio waves. They were first discovered in the 1950s, but it wasn't until the 1960s when a technique known as aperture synthesis was developed that we could resolve the ...

CSI: Milky Way

These days the core of the Milky Way galaxy is a pretty tame place... cosmically speaking. The galactic black hole at the center is a sleeping giant. Existing stars are peacefully circling. Although conditions are favorable, ...

page 1 from 2