1–20 of 418 results
Solar flare

Solar System

New Evidence for Nanoflares?

Astronomers have spotted weak bursts of low-frequency radio emission coming from all over the Sun.

Super-Earth Family Portrait

Exoplanets

Three Nearby Exoplanets to Explore

A trio of nearby exoplanets make tempting new targets for next-gen telescopes.

Erosita's first all-sky X-ray survey

Professional Telescopes

First All-sky Map from eRosita

The first all-sky X-ray map to be released in 30 years reveals new wonders of the hot and energetic universe.

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.

Ursa Major Arc

Milky Way

Astronomers Discover Huge Circular Arc Near the Big Dipper

The 30-degree circular arc is likely a shock front expanding from a star that exploded some 100,000 years ago.

Four sightlines through the Milky Way halo

Milky Way

The 10 Million-Degree Gas Around the Milky Way

New observations show ultra-hot gas around the Milky Way. Stellar explosions may have driven this gas out of our galaxy.

New Horizon

Spacecraft and Space Missions

New Horizons' "Alien View" from the Outer Solar System

NASA's New Horizons mission deep in the Kuiper Belt has measured the parallax to two nearby stars with the help of Earth-based observers.

Milky Way halo

Galaxies

Galaxies Are Even Bigger Than You Think

Galaxies swim in hot gas that extends much farther out than their stars — and plays an important role in the galaxy's evolution.

SPHERE image of AB Aurigae

Exoplanets

Astronomers Witness the Birth of Planets

Two new sets of observations show astronomers what planet formation looks like.

Artist's concept of early disk galaxy

Galaxies

Rotating Disk in Early Universe Explains Galaxy Formation

The discovery of a stably rotating disk galaxy in the early universe is the best indicator yet for how galaxies like the Milky Way formed.

OJ 287 (artist's concept)

Black Holes

Black Hole Duo Flares Right on Time

Astronomers have forecast a flare from a supermassive black hole duo 3.5 billion light-years away.

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.

An arm to the sun

Spacecraft and Space Missions

Details of SpaceX's Starlink "VisorSat" Revealed

SpaceX has revealed new details on its plans to darken the Starlink satellites.

Star-forming outflow in a Milky Way-like galaxy

Milky Way

Is the Milky Way Throwing Out Forming Stars?

Some of the scant stars dwelling in the Milky Way's halo may have an unexpected origin: They may come from the galaxy itself.

USGS Geologic Map of the Moon

Solar System

New, Incredibly Detailed Geologic Map of the Moon

The U.S. Geological Survey (USGS) has released a new 1:5,000,000 map of the Moon that provides a wealth of information about its surface.

Asteroid collision

Exoplanets

Fomalhaut b: Exoplanet or Puff of Dust?

Is Fomalhaut b “the planet that never was”? Astronomers continue to contest the nature of this directly imaged object around a nearby star.

Magnetic channels in distant galaxy

Galaxies

Vast Magnetic "Strings" Puzzle Astronomers

New observations have revealed plasma strung along vast magnetic "strings" crossing hundreds of thousands of light-years.

Starlink constellation around Earth

Spacecraft and Space Missions

Starlink and the Astronomers: An Update

As Starlink satellites continue to enter low-Earth orbit — there are 360 of them now — SpaceX is working to mitigate the serious problems they pose for astronomy.

Cosmology

A Mysterious X-ray Signal Has Gone Missing

The absence of a mysterious X-ray signal — which could have provided evidence of dark matter — is causing as much controversy as its detection did.

The Milky Way's warp

Milky Way

The Milky Way’s Warped Tutu Twirls Every 600 Million Years

Astronomers have known for decades that our galaxy is warped. Now, they can follow the warp’s rotation as it travels around the galactic center.

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