1–20 of 120 results

Galaxies

Squid Galaxy Gets in on the Neutrino Game

Astronomers have connected dozens of neutrinos detected by the IceCube Observatory to a nearby galaxy, M77, aka the Squid Galaxy.

Palimpsest

History and Sky Lore

Lost Star Catalog of Ancient Times Comes to Light

Technology may have revealed a piece of the long-lost works of Greek astronomer Hipparchus, one of the greatest astronomers of antiquity.

Artist's impression of exploding star

Milky Way

Speeding Cloud Might Come from Recent, Nearby Supernova

Hypervelocity clouds, generally thought to be falling fast into the Milky Way, might have an alternative explanation that places them near us.

Saturn moons and rings

Solar System

Lost Moon Could Solve Saturn’s Riddles

An icy moon torn apart in Saturn's gravitational field some 150 million years ago could explain why the planet's rings are so young and a host of other puzzles.

Giant impact 65 million years ago

Solar System

Did the Dinosaur-killing Asteroid Have a Sidekick?

The asteroid that wiped out the dinosaurs 66 million years ago might not have arrived alone.

Astronomy & Observing News

Dusty Disk Discovered in the Twins’ Foot

A careful study of observations spanning decades has revealed that a star in Gemini is regularly eclipsed by a disk-shrouded companion.

JWST deep-field image showing many galaxies

Galaxies

Webb Telescope Shatters Distance Records, Challenges Astronomers

Distant galaxies in Webb images suggest we need to rethink star and galaxy evolution in the early universe.

Black widow pulsar

Stellar Science

Black Widow Pulsar Sets Mass Record

A pulsar has devoured enough of its stellar companion to grab the title for most massive known neutron star.

white and gold interior of LUX detector

Cosmology

Dark Matter Remains Elusive – For Now

The first run of a new dark matter experiment turns up nothing — but that still tells us something.

White dwarf surrounded by debris disk (art)

Exoplanets

A Strange White Dwarf with a Chaotic Past

New observations show that both rocky and icy worlds fell onto a white dwarf, indicating past orbital chaos in the system.

Theia Impact

Solar System

Where Did Earth’s Trojans Go? Ask the Moon

Why doesn't Earth have Trojan asteroids of its own? Large impacts in the early years of the solar system may be to blame.

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.

Milky Way, edge-on view

Milky Way

Hundreds of Thousands of Stars Reveal the Milky Way’s “Teenage” Years

A census of hundreds of thousands of subgiant stars in our galaxy provides a window into the Milky Way's early history.

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.

Dark matter-less galaxy

Cosmology

How Galaxies Lose Their Dark Matter

A careful study of cosmological simulations shows that dark matter–less galaxies aren't impossible — just really rare.

Asteroid trail in Crab Nebula image by Hubble

Solar System

Citizen Scientists Find 1,000+ Asteroids Photobombing Hubble Images

The combined power of citizen science and machine learning have led to the discovery of more than 1,000 new asteroids in archival images taken by the Hubble Space Telescope.

Black Holes

Does the Andromeda Galaxy Harbor a Mid-weight Black Hole?

New observations suggest a black hole 100,000 times the mass of the Sun lurks in the center of a globular cluster of the Andromeda Galaxy.

Twelve for dinner

Milky Way

Stellar Streams Are Revealing Their Secrets

A detailed study of 12 streams of stars swirling in and around the Milky Way will ultimately help shed light on our galaxy's dark matter halo.

An artist's impression of the dramatic outflows from an active galaxy’s nucleus.

Galaxies

Dwarf Galaxies Shed Light on Black Hole Origins

Astronomers are searching nearby dwarf galaxies for the ancient origins of supermassive black holes.

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.

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