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.
An active sun

The Carrington Event of 1859 Disrupted Telegraph Lines. A “Miyake Event” Would Be Far Worse

We don't know what causes Miyake events, but these great surges of energy can help us understand the past—while posing a threat to our future.
The IceCube Laboratory just before South Pole Dawn

“Ghostly” Neutrinos Help Us See Our Milky Way as Never Before

As Marcel Proust said, “The real voyage of discovery...consists not in seeking new landscapes, but in having new eyes.”
Animation of Black Hole Disk Flare in OJ 287

Solved: Astronomers Identify Origin of Mysterious Flares in Galaxy OJ 287

In a distant galaxy, a cosmic dance between two supermassive black holes emits periodic flashes of light.
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.
Computer rendering of the Thirty Meter Telescope

Putting Science in its Place

A new stewardship group for a telescope in Hawai‘i hints at what cooperation between the European scientific tradition and Indigenous knowledge might look like.
From Remarks on the new comet. In a letter from William Herschel to Charles Blagden

Caroline Herschel Claims Her Comet

Couching her petition in a mix of modesty and expertise, Herschel became the first woman to have a scientific paper read to the Royal Society of London.