121–140 of 241 results
ring galaxy ESO 179-13

Galaxies

Dwarf Bull’s-eye Galaxy Discovered

Astronomers have discovered that one galaxy of a nearby double-galaxy system has a giant, star-studded ring.

IAU Closing

Exoplanets

At the IAU: New Dwarf Galaxy Neighbors & Dark-Sky Sanctuaries

As the IAU General Assembly in Hawaii'i draws to a close, the results were still coming in: a new bevy of dwarf galaxies discovered around the Milky Way, the celebration of the first Dark-Sky Sanctuary, and a new directly imaged exoplanet to boot.

GAMA Galaxy Images

Galaxies

"The Universe Is Dying" — So What?

Recent headlines proclaim that the universe is dying, but we’ve actually known that for decades. Here’s what’s really interesting about recent research on the nearby universe.

cold-gas accretion simulation

Galaxies

Gigantic Protogalaxy in the Cosmic Web

Astronomers have found that a massive filament of gas in the early universe actually seems to be a humongous, galaxy-forming disk.

The dust pillars of NGC 4921

Galaxies

Cosmic Wind Erodes Distant Galaxy

On Earth, wind can transform entire landscapes - turns out the same is true in space. Galaxy NGC 4921 faces an intracluster wind that's eroding its star-forming terrain.

Galaxies

Seeing Signs of the First Stars?

Astronomers have come upon the tantalizing signal from some of the universe’s first stars.

Galaxies

Weighing a Supermassive Black Hole

Combining a novel technique and a world-class telescope, astronomers have measured the mass of the supermassive black hole at the center of barred spiral NGC 1097.

low-dust galaxies

Galaxies

Dust-poor Early Galaxies

New ALMA observations reveal low levels of dust in nine early galaxies, suggesting astronomers should revise some of their calculations.

Galaxies

Dark Galaxies Suffuse the Coma Cluster

Following on a surprising find reported last year, astronomers have now discovered almost 1,000 dark matter-rich galaxies in the Coma Cluster.

Galaxies

Between Galaxies: Lonely Supernovae

Researchers confirm that three solitary stars have gone supernovae in intergalactic space.

Most Luminous Galaxy

Galaxies

The Most Luminous Galaxy

Researchers using NASA’s Wide-Field Infrared Survey Explorer (WISE) have discovered the most luminous galaxy to date.

Galaxies

The Migrating Stars of Cluster 47 Tucanae

Observations of white dwarfs in a densely populated globular cluster confirm astronomers’ expectations that stars will migrate to a cluster’s outskirts after losing weight.

Andromeda's halo

Galaxies

Spotting Andromeda Galaxy’s Giant Halo

Astronomers have detected a massive yet elusive nimbus of hot gas surrounding Andromeda Galaxy.

Andromeda Galaxy

Galaxies

Runaway Compact Galaxies?

Astronomers have discovered 195 compact elliptical galaxies, upping the known number of these weird galaxies sixfold.

NGC 5972 and the ghost of quasars past

Galaxies

Hubble Investigates Ghosts of Quasars Past

A galaxy-size blob of gas discovered eight years ago by a Dutch schoolteacher has galvanized the study of the spectral remains of once-bright quasars.

massive galaxy evolution

Galaxies

Ancient Galaxies Seen Dying Inside-Out

Astronomers have found massive galaxies 3 billion years after the Big Bang that are dying from the inside out.

Einstein Ring of Fire

Cosmology

Ring-Shaped Spyglass to Early Universe

A rare type of gravitational lens offers astronomers a close look at a young, dusty galaxy manufacturing hundreds of stars a year.

Potential dwarf galaxies

Cosmology

New Dwarf Galaxies Near Milky Way

Astronomers have found a set of new dwarf galaxy candidates near the Milky Way Galaxy, a discovery crucial to understanding dark matter.

Supernova Refsdal

Cosmology

Hubble Spots a Lensed Supernova

For the first time, astronomers are watching as a supernova’s light bends around a massive galaxy on its way to Earth.

Abell 1689

Galaxies

Dusty Galaxy in the Early Universe

A small galaxy 700 million years after the universe’s birth has a dust reservoir that makes it look like a much older galaxy.

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