1–20 of 368 results
Planetary nebulae (mostly)

Stellar Science

How Planetary Nebulae Get Their Shapes

New research shows why these celestial gems range in shape from spirals to butterflies.

Magnetic fields in Serpens South Cluster

Galaxies

See the Invisible: A Gallery of Magnetic Fields

Magnetic fields affect everything from star formation to galaxy evolution. View a gallery of images that show magnetism's role.

Dust-enshrouded neutron star in Supernova 1987A

Stellar Science

Neutron Star Found in Supernova 1987A

After decades of searching, astronomers have finally found the collapsed core of the nearest supernova recorded in recent history.

Artist’s illustration of a magnetar

Stellar Science

An Infant Pulsar Defies Categorization

The discovery of the youngest pulsar yet has lead astronomers to question the current classification system of these objects.

Brown dwarf

Stellar Science

Citizen Scientists Help Discover “Weird” Brown Dwarfs

Astronomers and citizen scientists have found two would-be stars lacking heavy elements. They’re most likely ancient survivors of our galaxy’s earliest days.

Magnetar

Stellar Science

Astronomers Discover a Newborn Magnetar and a New Cosmic Beat

This week, astronomers announce a newborn magnetar and a fast radio burst that's bursting to a beat.

A

Stellar Science

Two New Beasts for an Explosive Zoo

And that makes three: Astronomers are beginning to understand what may be causing a special kind of flare in the distant universe.

Delta Scuti star and light curve

Stellar Science

Astronomers Investigate Stellar Interiors

Astronomers have untangled the constantly changing brightness of variable stars known as Delta Scuti stars, yielding estimates for their ages.

Magnetar

Stellar Science

Milky Way Magnetar Makes Fast Radio Burst

Fast radio bursts are mysterious — and powerful — flashes of radio waves. Now, we've found one of these flashes coming from a magnetar in our own galaxy.

The Sun vs. Sun-like Stars

Solar System

How Lazy Is the Sun?

Astronomers studying hundreds of Sun-like stars were surprised to find that most of them are more active than the Sun. Why is the Sun different?

Brightest supernova

Stellar Science

Astronomers Detect One of the Most Luminous Supernovae Ever

One of the most luminous supernovae ever discovered provides evidence that such extremely bright explosions require exotic sources.

Two neutron stars prior to merger

Stellar Science

Gravitational Waves Put Ruler to Neutron Stars

Scientists have combined observations of gravitational waves from a neutron star collision with nuclear theory to shed light on the size and nature of neutron stars.

Then and now

Celestial News & Events

The Fall and Rise of Betelgeuse

With its recent uptick in brightness, Betelgeuse appears to be slowly returning to normal. But will it? Astronomers urge us to keep watch.

Betelgeuse telescopic view

Celestial News & Events

Is Betelgeuse Approaching a Crossroads?

Astronomers all over are waiting with bated breath to see what Betelgeuse will do next. Is it going to start brightening again on February 21st? Or will it continue to surprise?

Stellar Science

Faint Repetitions of an Extragalactic Burst

New evidence deepens the mystery of fast radio bursts (FRBs), the brief flashes of radio emission stemming from unknown sources beyond our galaxy.

Stellar Science

Flapping "Bat Wing" Could Reveal Secrets of Planet Formation

The shadow cast by a protoplanetary disk takes the shape of a bat — and over time, flaps like one, too. The eery shadow could help astronomers understand the planet-forming material inside the disk.

Pulsar-white dwarf pair

Stellar Science

White Dwarf’s Whirlwind Spin Drags Spacetime

Astronomers have used observations of a tight white dwarf-neutron star pair to confirm an aspect of Einstein's general theory of relativity.

Superluminous supernova SN 2006gy

Stellar Science

Superluminous Supernova, Explained?

Some brilliant explosions at least 10 times more powerful than regular supernovae might come from a white dwarf merging with a massive companion star. But not everyone agrees on that explanation.

Thuban in TESS image

Celestial Objects to Observe

See Ancient “North Stars" Eclipse Each Other

The ancient pole star known as Thuban turns out to be an eclipsing binary. If you're up for a challenge, you can see the eclipses for yourself.

Host Galaxy of a Radio Flash

Stellar Science

New Mysterious Radio Flash Pinned Down; Hundreds More Being Discovered

Recent observations have pinpointed the location of a fifth fast radio burst, shedding light on the environs that create these powerful sources.

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