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Supernova 1987A (no labels)

Stellar Science

Gotcha: Firm Evidence for a Neutron Star in Supernova 1987A

After decades of debate, James Webb Space Telescope observations provide firm evidence of a neutron star inside the 1987A supernova remnant.

Magnetar getting ready to launch an FRB

Stellar Science

Neutron Star "Glitches" Are Clue to Mysterious Radio Bursts

New observations of a neutron star in the Milky Way's center shed light on what makes mysterious fast radio bursts.

dense ball of bright pinpricks, which are stars in the globular NGC 1851

Stellar Science

Mystery Objects Uncovered in Globular Clusters

Astronomers have found two different star clusters with an enigmatic source inside. Are these objects neutron stars or black holes?

CHARA image of RW Cephei, before and after

Stellar Science

Astronomers Watch Another Giant Star Dim

Turns out, Betelgeuse isn't the only giant star to undergo a "Great Dimming."

round, expanding shell with intricate, knotty filaments

Stellar Science

Cassiopeia A: A Festive Supernova Remnant

New near-infrared observations from the Webb telescope reveal intricate strands of debris from the exploded star.

white flare of light at left gives rise to spiral jet going off to the right

Stellar Science

Astronomers Find a Brilliant Explosion That Just Keeps On Exploding

A brilliant flash of blue light briefly outshined its host galaxy before fading away — but then it exploded again and again, shedding light on the nature of its source.

A purple skeletal hand reaches for an oval of pumpkin-colored blobs

Stellar Science

Dead Stars Come to Life This Halloween

The ghostly lights from two dead stars have stories to tell.

Fast radio burst illustration

Stellar Science

Radio Burst Breaks Distance Record, Challenges Theories

A highly energetic fast radio burst, which broke the distance record, provides a crucial test for theories of these events' origins.

An illustration of one of brightest explosions ever seen in space. Called a Luminous Fast Blue Optical Transient (LBOT), it shines intensely in blue light. It appears as a bright white blob left of centre where blue-white and red rays sprout out from it. Toward the right of the image there is a white spiral galaxy. To the upper left is another whitish galaxy shaped like a cigar. The LFBOT doesn’t seem to be associated with either galaxy.

Stellar Science

Hubble Telescope Witnessed Intergalactic Flash of Light

An explosive flash of blue light briefly appeared in intergalactic space, thousands of light-years from the nearest galaxy.

central pulsar encased in disk, pulsar emits narrow jet out of its poles. In background is a larger but less massive companion star

Stellar Science

Peculiar Pulsar Throws “Cosmic Cannonballs”

Astronomers think a city-size star that’s spinning faster than a kitchen blender is shooting out plasma torpedoes.

Giant flare on a magnetar

Stellar Science

Fast Radio Burst Roundup

They’re powerful, they’re fast, and we aren’t sure about what causes them, but astronomers are closer than ever to understanding the source of mysterious fast radio bursts.

Giant blue star is rugby-ball shaped, with a smaller blue companion to lower left

Stellar Science

Surf’s Up: Waves Might Be Breaking on This Star

An unusual star system that brightens and fades every month might have giant plasma waves breaking on its surface.

Magnetic massive star shines blue with dipole field

Stellar Science

Astronomers Find Strange Star Is a Powerful Magnet

Astronomers have found a star that has a magnetic field rivaling the strongest magnet humans have ever built — and it might explain the origin of highly magnetic cinders known as magnetars.

Near-infrared image shows the Ring Nebula in yellow (central area) and purple (outer ring)

Stellar Science

Webb Views the Ring Nebula and Earendel in a New Light

This week, James Webb Space Telescope reveals new details in the Ring Nebula and shows that the most distant known star isn't alone. Meanwhile, patient astronomers have collected 17 years' worth of images of the super-Jupiter Beta Pictoris b.

Explosive forming stars

Stellar Science

Astronomy in Pictures: The Birth of Stars and Planets

Images capture the birth of stars and planets in multiple results from space- and ground-based telescopes.

hot blue ball, one side brighter than the other

Stellar Science

A Jekyll-Hyde White Dwarf

The white dwarf J2033 seems to switch rapidly between two compositions.

Neutron star

Stellar Science

Astronomers Find Mysterious, Slowly Pulsing Star

An unidentified source has been beaming out a pulse of radio waves every 22 minutes since 1988.

magnetar illustration: white sphere with magnetic dipole lines and flashes among the field lines

Stellar Science

Could Axions Help Fast Radio Bursts Escape a Magnetar’s Grasp?

New research proposes a way for fast radio bursts to escape the confines of a magnetized star and jet out into space — by getting help from theoretical particles called axions.

Nova Persei expansion

Explore the Night with Bob King

Time-lapse Animations Reveal a Universe in Transformation

Deep-sky objects may appear static throughout our lifetime but by carefully "blinking" archival and current images we can discern real changes in their appearance.

Fuzzy blob inset in field of galaxies

Stellar Science

Could Supermassive Stars Explain How This Galaxy Got Its Nitrogen?

Supermassive stars might explain the unusual amounts of nitrogen in one of the most distant known galaxies, GN-z11.

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