The larger the mirror, the more light is collected. This means that we can see farther back in time to observe star and galaxy formation.

For more than 60 years, scientists have been searching for possible signs that would indicate the existence of extraterrestrial intelligence

Black holes are more than just massive objects that swallow everything around them—they're also one of the universe's biggest energy sources

Researchers in Australia say their latest project scanned billions of stars and 144 known exoplanets for signs of alien broadcasts.

The new office will focus on incidents in, or near, "special use airspace" areas strictly controlled and blocked from general aviation use.

Thousands of alien worlds are known to orbit stars beyond our solar system. And many more worlds, possibly harboring life.