Where is the Universe Hiding its Missing Mass?

Astronomers have spent decades looking for something that sounds like it would be hard to miss:…

Hubble Peers into the Vast Distance

This picture showcases a gravitational lensing system called SDSS J0928+2031. Astronomers are using NASA/ESA Hubble Space…

Hubble Peers into the Vast Distance

This picture showcases a gravitational lensing system called SDSS J0928+2031. Astronomers are using NASA/ESA Hubble Space…

Signs Of Ancient Flowing Water On Mars

These images from ESA's Mars Express satellite show a branching, desiccated system of trenches and valleys,…

Signs Of Ancient Flowing Water On Mars

These images from ESA's Mars Express satellite show a branching, desiccated system of trenches and valleys,…

In Colliding Galaxies, a Pipsqueak Shines Bright

In the nearby Whirlpool galaxy and its companion galaxy, M51b, two supermassive black holes heat up…

In Colliding Galaxies, a Pipsqueak Shines Bright

In the nearby Whirlpool galaxy and its companion galaxy, M51b, two supermassive black holes heat up…

Hundreds of Thousands of Previously Unknown Galaxies Mapped

An international team of more than 200 astronomers from 18 countries has published the first phase…

Hundreds of Thousands of Previously Unknown Galaxies Mapped

An international team of more than 200 astronomers from 18 countries has published the first phase…

Citizen Scientist Finds Ancient White Dwarf Star Encircled by Puzzling Rings

A volunteer working with the NASA-led Backyard Worlds: Planet 9 project has found the oldest and…