1–20 of 416 results
Nova illustration

Stellar Science

Astronomers Watched a White Dwarf Turn into a Thermonuclear Fireball

Astronomers have spotted the X-ray flash that precedes a nova. The brief flare is the first sign of a white dwarf erupting into a nuclear-fusion fireball.

FRB counterpart

Stellar Science

A Possible Optical Counterpart to a Fast Radio Burst?

What’s the mechanism behind millisecond-duration bursts of radio energy coming from outer space? A team searched for visible-light counterparts to constrain the origin of fast radio bursts — and found one.

Cocooned jets

Stellar Science

Cocoons Around Dying Stars Could Explain New Type of Stellar Explosions

A recently discovered type of stellar explosion might fit right in among the spectrum from regular supernovae to massive gamma-ray bursts.

Pulsar

Stellar Science

Pulsar Shoots 7-light-year-long Phaser Blast

Nature proves truth is still stranger than fiction: A pulsar has shot energetic particles in a thin, straight line that extends for light-years into space. The discovery might explain how antimatter makes its way to Earth.

big, bright, bluish star surrounded by a disk and near a second big, bright bluish star

The Black Hole Files with Camille Carlisle

“Closest Black Hole” Doesn’t Exist, After All

Astronomers combined forces to confirm that a black hole proposed to lie a mere 1,000 light-years away isn’t really there.

Globular cluster outside M81

Stellar Science

Fast Radio Burst's Unlikely Home Puzzles Astronomers

Astronomers have found a fast radio burst — presumably a flash from a young stellar remnant — amongst the ancient stars of a globular cluster, challenging ideas about what produces these enigmatic flashes.

Stellar Science

Protostar Companions in Orion

How are stars born? One of the best places to test ideas about stellar birth is in Orion.

HD 93521

Milky Way

A Star Where It Shouldn't Be

There’s a massive star in our galaxy’s halo, far away from the usual star-forming haunts. How did it get there?

Artist's illustration of a magnetar

Stellar Science

Exploring a Magnetospheric Origin for Fast Radio Bursts

Astronomers are starting to close in on the origins of fast radio bursts — powerful, fleeting flashes of radio waves seen at extragalactic distances.

Flame Nebula

Stellar Science

The Flames of Orion and a Supergiant Star's End

Astronomers watch starbirth and stardeath, capturing a unique view of a stellar nursery and witnessing a supergiant's supernova.

Compact object emits jets and ring of light in artist's concept of a supernova dubbed

Black Holes

Stellar Remnant at the Core of Mysterious Flash Dubbed "The Cow"

Astronomers have identified the origin of a mysterious flash that occurred three years ago.

Black hole in another galaxy (artist's illustration)

Black Holes

Did Astronomers Spot a Black Hole in Another Galaxy? Maybe Not

Astronomers might have spotted a stellar-mass black hole in another galaxy — but not everyone agrees with what they found.

Stellar companion strips outer layers from massive star (art)

Stellar Science

Close Companions Help Stars Make More Carbon

Massive stars can produce twice as much carbon when they have a close binary companion, according to a new study. The result is a small but important step in understanding the cosmic origin of elements.

An image of the globular cluster Messier 5

Stellar Science

Unlocking the History of Globular Cluster Messier 5

A new study uses precise measurements of chemical elements to explore the formation history of one of the oldest globular clusters in the Milky Way.

Magnetar

Stellar Science

China’s FAST Observatory Sees More Than 1,000 Radio Bursts from a Single Spot

The largest haul of fast radio burst observations ever recorded, all from a single fast radio burst, is helping astronomers understand what causes these fleeting cosmic phenomena

Apollo 11 photo of Earth with glare from Sun

Science and Space Policy

Did Astronomers See a Distant, Dying Star? Or an Earth-bound Satellite?

What seemed a lucky break — the discovery of a gamma-ray burst in the most distant known galaxy — might instead be the flash of passing space debris. As satellites fill low-Earth orbit, such events might become common.

Superbubble in the Milky Way

Stellar Science

Supernova Blasts Hollowed Out "Giant Cavity" in Space

Some 10 million years ago, dying stars cleared a giant cavity in space and ultimately inspired a new generation of star formation.

Gravitationally lensed supernova, four ways

Stellar Science

60-second Astro News: Solving Supernova Mysteries

This week, astronomers have solved one supernova mystery and predicted a new one — to be solved in 2037.

Artist's illustration of merger-triggered supernova

Stellar Science

New Kind of Supernova Implodes Stars Before Their Time

Astronomers have found the first circumstantial evidence for a supernova triggered by a merger with a neutron star or maybe even a black hole.

M13

Black Holes

60-second Astro News: White Dwarfs Still Burn, Black Holes Merge

This week in astronomy news, we learn that some white dwarfs still burn and image X-rays from black holes almost 12 billion light-years away.

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