It’s true that we haven’t seen alien life, but neither have we seen much of the universe.

See how the night sky would appear from a different part of the galaxy.

Astronomers are using new tools in their search for cosmic voids.

The Antennae Galaxies are in a state of “starburst,” when the gas from the two colliding galaxies crashes together to produce huge numbers of new stars.ESA/Hubble & NASA According to the basic approximation, stars are formed by a stately, gradual process that belies the power it eventually unleashes. Within a great gas cloud, gravity slowly […]

A 2018 mission will send a probe to within 4 million miles of the sun.