101–120 of 158 results

Milky Way

Young Stars Lead the Magellanic Stream

Astronomers have discovered hot, young stars in the Leading Arm of the Magellanic Stream, calling the history of the Magellanic Clouds once again into question.

Milky Way

Fingerprinting the Circumgalactic Medium

A new study finds the space surrounding dwarf galaxies in the nearby universe to be shockingly pristine.

Galaxies

Galaxies Grow By Snacking

Evidence from observations and computer simulations supports a picture of galaxy growth that isn't dominated by the rough-and-tumble crashes of big galaxies. Instead, most of the universe's stellar metropolises appear to feed themselves with nibbles instead of feasts.

Milky Way

Mapping the Milky Way's Arms

Astronomers continue to debate whether our home galaxy has big arms and some smaller appendages — or, as new results suggest, four major arms.

Milky Way

New 3D Maps of Milky Way's Bulge

New 3D maps of the Milky Way's central bulge of stars show a distinctively peanut-like shape. The maps give clues about how our galaxy evolved to its present-day form.

Milky Way

Astronomers Discover Black Hole's Dieting Strategy

The Milky Way's central supermassive black hole eats only a fraction of the gas available to it. New X-ray observations suggest how the beast manages to stay so trim when faced with a feast.

Milky Way

Source Found for Magellanic Stream

New observations solve the origins of a long rivulet of gas encircling the Milky Way.

Black Holes

New Pulsar Explores Heart of Milky Way

A pulsar discovered last April is helping astronomers measure the magnetic field surrounding our galaxy’s central black hole.

Milky Way

Glimpse the X-ray Sky

Time and tide wait for no man. So the XMM-Newton space telescope is making every second count. As the telescope shifts its gaze from source to source, it's recording the X-ray sky.

Black Holes

Snack Starts Swinging Around Black Hole

Astronomers around the world are watching as the gaseous object called G2 heads for a close pass around the Milky Way's central supermassive black hole. Now it looks like the distended cloud is starting to swing back toward us.

Cat's Paw Nebula

Galaxies

Cat’s Paw Nebula: Nearby Mini-Starburst?

The Cat's Paw Nebula is home to many bright, young stars. But thousands of fainter stars concealed behind dust reveal themselves in a new infrared image.

Professional Telescopes

A Cosmic Sleight of Hand

Astronomers have been waiting for our galaxy’s slumbering supermassive black hole to stir for a snack. Instead, the universe handed them a different treat.

Milky Way

Can Stars Form in our Galaxy's Center?

Observations of Milky Way’s chaotic center show hints of stars forming just two light-years away from our galaxy’s supermassive black hole.

Milky Way

Baby Black Hole Discovered

Astronomers investigating a supernova remnant see nothing but swirls of gas. The lack of stellar remains means the explosion must have birthed a black hole only 1,000 years ago.

Milky Way

Mapping the Milky Way

New observations of spaghetti-thin clouds, faraway star-forming regions and mysterious magnetic fields are revealing the hard-to-see structure of the galaxy we call home.

Galaxies

Galactic Bubbles Spark Debate

New microwave and radio observations resurrect controversy over gigantic lobes seen ballooning from the Milky Way’s center.

Cosmology

Cosmic Web Weeds Dwarf Galaxies

Astronomers have discovered an unexpected explanation for why they can only find a small fraction of the satellite galaxies the Milky Way is supposed to have.

Milky Way

The Flares from Milky Way’s Black Hole

Our galaxy’s central supermassive black hole emits regular, mysterious X-ray flares. For the first time, NASA’s newest sharp-eyed telescope has captured a high-energy view of the action.

Stellar Science

Revisiting Orion's Stellar Membership

The Orion Nebula hosts a well studied star cluster, the gold standard by which astronomers measure all other clusters. New research suggests that this benchmark might need to be revised.

stars orbiting black hole

Stellar Science

Star Zips around Black Hole

Astronomers announced that they've successfully tracked a star that takes less than 12 years to whip around the Milky Way's central black hole. The star isn't so special on its own, but combined with other observations it might help unwrap the region's mysteries.