Overlooked No More: Beatrice Tinsley, Astronomer Who Saw the Course of the Universe

An insurgent who challenged the academic establishment and became a foremost expert on the aging of…

How NASA’s TESS Spacecraft Will Hunt Exoplanets

NASA’s TESS spacecraft will spend two years searching the sky for nearby alien worlds.

Stephen Hawking, Pop Culture Icon

Stephen Hawking, one of the greatest physicists of our time, died on Wednesday. He is immortalized…

The Expansive Life of Stephen Hawking

Dr. Hawking captured the public imagination and endeared himself to tens of millions of people around…

A Glimpse of Oumuamua

Astronomers have discovered a passing rock from another star — the first interstellar asteroid.

New Images of Iapetus

The Cassini probe recently swept by for a really close look at Iapetus, one of Saturn's…

Life on Mars: Return to Earth

In the series finale of our 360 video series, "Life on Mars," the six crew members…

Detecting a Kilonova Explosion

For the first time, astronomers have seen and heard a pair of neutron stars collide in…

3-D Printing for Space Exploration

Branch Technology is developing a 3-D printing process that can build structures on Mars. Step into…

Cassini Burns Into Saturn

NASA’s Cassini spacecraft will plunge into Saturn on September 15, incinerating itself after 20 years in…