The Hunt for Life in Alpha Centauri

This oddball system of three stars might be our best chance at finding nearby life in the Universe.
This artist concept depicts "multiple-transiting planet systems," which are stars with more than one planet.

To Find a New World, Watch How a Planet Dances with Its Star

Finding a tiny planet around bright stars dozens or hundreds of light-years from Earth is extremely difficult.
This composite image contains X-ray data from Chandra (green and blue) that show heated material in the center of a shell generated by a supernova explosion. Optical data from Hubble show the glowing pink rim, which is ambient gas being shocked by the blast wave from the supernova, as well as the surrounding star field. The Type Ia supernova that resulted in the creation of this remnant would have been visible from Earth some 400 years ago.

How Stars Die

Nothing in this Universe is eternal—not even the stars.
International Gemini Observatory/NOIRLab/NSF/AURA/B. O'Connor (UMD/GWU) & J. Rastinejad & W Fong (Northwestern Univ) Image processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), J. Miller, M. Zamani & D. de Martin (NSF’s NOIRLab)

Explaining GRB 221009A, the Greatest Cosmic Explosion Humanity Has Ever Seen

The brightest gamma-ray burst ever observed, GRB 221009A behaved in unexpected ways that might help us understand how they occur.
Credits: Frank Summers (STScI), Greg Bacon (STScI), Joseph DePasquale (STScI), Leah Hustak (STScI), Joseph Olmsted (STScI), Alyssa Pagan (STScI); Science by: Steve Finkelstein (UT Austin), Rebecca Larson (RIT), Micaela Bagley (UT Austin)

NASA’s Deepest 3D Fly-through of the Universe

From the present day all the way to less than 400 million years after the Big Bang, we're seeing how the Universe grew up like never before.
Martian Moon Deimos

Deimos: A Chip Off the Old Martian Block?

A new space probe suggests that the moonlet Deimos isn’t a captured asteroid after all.
Colour lithograph of partial lunar eclipse by Etienne Leopold Trouvelot

Trouvelot’s Total Lunar Eclipse

Immigrant artist Étienne Léopold Trouvelot used his skills to accurately represent the details—and the sublimity—of our solar system.
A tunnel of carious speckles and colors

How to See the Invisible Universe

Telescopes that detect long-wavelength signals offer clues about the Big Bang, the centers of black holes, and the origins of life.
Jupiter great red spot

The Secrets of Jupiter’s Incredible Great Red Spot

Astronomers have worked out that Jupiter's Great Red Spot is a massive storm system, but what keeps a storm going for hundreds of years?