41–60 of 127 results

Milky Way

Exploring the Minispiral at the Milky Way’s Center

The region around Sgr A*, the 4-million-solar-mass black hole at the heart of our galaxy, is a complex and dynamic place. New Atacama Large Millimeter/submillimeter Array (ALMA) observations of the Milky Way’s center now reveal more about this harsh, inhospitable environment.

Gaia video of 5 million years

Milky Way

Watch Milky Way’s Stars Move 5 Million Years into the Future

Astronomers have transformed star data from the Gaia and Hipparcos missions into a video that predicts stellar motions millions of years from now.

Sagittarius Stream

Milky Way

Origin of Our Galaxy's Most Distant Stars

The most distant stars discovered in the Milky Way might have been ripped away from a companion galaxy.

Milky Way

New Mass Estimate for the Milky Way

Astronomers have observed the motion of distant star clusters to measure our galaxy’s mass. The new estimate places the Milky Way in the lightweight class of galaxies.

Pluto's Sputnik Planum in color

Solar System

Top 12 Astronomy News Stories of 2016

From the discovery of gravitational waves to the building evidence that a massive planet could exist beyond Pluto, it has been a thrilling year for astronomy research. We recap.

HI4PI maps Milky Way's neutral hydrogen

Galaxies

Astronomers Map Milky Way in Incredible Detail

Astronomers have mapped neutral atomic hydrogen, which profuses the space between stars, in unprecedented detail to create a beautiful radio-wavelength portrait of the Milky Way.

superbubble in Milky Way

Milky Way

Cloud Punches Hole in Milky Way

An intergalactic cloud has slammed into the Milky Way Galaxy and left a big hole.

Milky Way

Milky Way's New Neighbor: A Giant Dwarf

Astronomers have discovered a “feeble giant”: one of the largest dwarf galaxies ever seen around the Milky Way.

Hypervelocity Binary System

Milky Way

Speedy Stars Weigh Milky Way’s Dark Matter Halo

It’s a bird! It’s a plane! It’s a . . . pair of hypervelocity stars? The surprising stellar duo may place constraints on the mass of our galaxy’s unseen dark matter halo.

Milky Way Galaxy Halo

Milky Way

Galactic Archaelogy in the Milky Way Halo

The motions of thirteen stars in our galaxy’s halo outline a shell-like structure, perhaps the remains of an ancient galactic collision.

Milky Way

A Cold New View of the Milky Way Galaxy

A stunning submillimeter mosaic of the Milky Way Galaxy captures a portrait of the cold dust and gas swirling along the galactic plane.

Ripples in the Milky Way's Disk

Galaxies

A Galaxy Hit-and-Run

Ripples found in the Milky Way’s disk reveal our galaxy survived an ancient hit-and-run. Now, astronomers might have caught the culprit.

Milky Way

Charting 70,000 Stars in the Milky Way

Astronomers have created an age-map of 70,000 stars spanning our galaxy, ushering in a new era of galactic archaeology.

magnetic fields around black hole

Milky Way

Our “Magnetic” Black Hole

Astronomers have detected magnetic fields writhing around the Milky Way's central black hole.

Milky Way

Star-Counting in the Galactic Bulge

Astronomers have taken a careful census of the smallest stars in our galaxy’s center.

Milky Way

Milky Way: Young Stars in an Old Bulge

The presence of stars just 100 million years old in the Milky Way Galaxy’s central regions confirms our galaxy’s nonviolent past.

Milky Way

Buckyballs Solve Interstellar Mystery

Soccer ball-shaped molecules lurking in the dusty corners of the Milky Way help resolve a long-standing problem.

Milky Way

Witnessing Light Echoes from a Neutron Star

X-ray echoes from binary star system Circinus X-1 are helping astronomers measure its distance from Earth.

Mapping the Milky Way with embedded star clusters

Milky Way

Mapping the Outer Milky Way

Stars still embedded in their natal clouds act as signposts to map the Sagittarius-Carina, Perseus, and Outer spiral arms of the Milky Way.

High-energy X-rays in Milky Way's center

Milky Way

Mysterious X-rays Spotted in Galactic Center

NASA’s NuSTAR mission has detected an unexpected haze of high-energy X-rays in our galaxy’s center, perhaps the signal of a mass stellar graveyard.

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