Astronomy TOP STORY

Monster Galaxies Gain Weight by Eating Smaller Neighbors Video in Story

© ICRAR

Galaxies eating other galaxies

Massive galaxies in the Universe have stopped making their own stars and are instead snacking on nearby galaxies, according to research by Australian scientists.


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Astronomy TOP STORIES

Latest Measurements from AMS Unveil New Territories in Flux of Cosmic Rays

© NASA

AMS

The Alpha Magnetic Spectrometer (AMS) collaboration has today presented its latest results. These are based on the analysis of 41 billion particles detected with the space-based AMS detector aboard the International Space Station.

A Look at Pulsar PSR J1640-4631

A Look at Pulsar PSR J1640-4631

The blue dot in this image marks the spot of an energetic pulsar -- the magnetic, spinning core of star that blew up in a supernova explosion.


Hubble Helps Find Smallest Known Galaxy Containing a Supermassive Black Hole

Hubble Helps Find Smallest Known Galaxy Containing a Supermassive Black Hole

Astronomers using data from NASA's Hubble Space Telescope and ground observation have found an unlikely object in an improbable place -- a monster black hole lurking inside one of the tiniest galaxies ever known.


Probing the Mystery of Hours-long Celestial Explosions

Probing the Mystery of Hours-long Celestial Explosions

Scientists at the University of Leicester have shed light on the origin of so-called "ultra-long Gamma Ray bursts", in results to be presented at a meeting in Russia next week.


Galaxy Mergers Defy Expectations to Produce Disk Galaxies

Galaxy Mergers Defy Expectations to Produce Disk Galaxies Video in Story

Galaxy mergers are quite common throughout the history of the Universe and for decades astronomers believed that these cosmic collisions led primarily to the formation massive elliptical galaxies.


Chandra X-ray Observatory Finds Planet That Makes Star Act Deceptively Old

Chandra X-ray Observatory Finds Planet That Makes Star Act Deceptively Old

A planet may be causing the star it orbits to act much older than it actually is, according to new data from NASA's Chandra X-ray Observatory. This discovery shows how a massive planet can affect the behavior of its parent star.


Hot Jupiters Provoke Their Own Host Suns to Wobble

Hot Jupiters Provoke Their Own Host Suns to Wobble

These large, gaseous exoplanets (planets outside our solar system) can make their suns wobble when they wend their way through their own solar systems to snuggle up against their suns, according to new Cornell University research published in Science, Sept. 11.


Spitzer's SPLASH Project Dives Deep for Galaxies

Spitzer's SPLASH Project Dives Deep for Galaxies

A new survey of galaxies by NASA's Spitzer Space Telescope is taking a plunge into the deep and uncharted waters of our cosmos.


Observations of Messier 54: Lithium Problem Also Applies Outside our Galaxy

Observations of Messier 54: Lithium Problem Also Applies Outside our Galaxy

This new image from the VLT Survey Telescope at ESO's Paranal Observatory in northern Chile shows a vast collection of stars, the globular cluster Messier 54.


Interactive Dark Matter And Milky Way's Missing Satellite Galaxies

Interactive Dark Matter And Milky Way's Missing Satellite Galaxies

Scientists believe they have found a way to explain why there are not as many galaxies orbiting the Milky Way as expected.


Hubble Finds Supernova Companion Star after Two Decades of Searching

Hubble Finds Supernova Companion Star after Two Decades of Searching

Using NASA's Hubble Space Telescope, astronomers have discovered a companion star to a rare type of supernova.


Volunteers Needed to Preserve Astronomical History and Promote Discovery

Volunteers Needed to Preserve Astronomical History and Promote Discovery

Before iPhones and laptops there were human computers, some of whom worked at the Harvard College Observatory. Women like Henrietta Swan Leavitt, Williamina Fleming, and Annie Jump Cannon made some of the most important discoveries in astronomy in the early 20th century.


Cosmic Forecast: Dark Clouds Will Give Way to Sunshine

Cosmic Forecast: Dark Clouds Will Give Way to Sunshine

Lupus 4, a spider-shaped blob of gas and dust, blots out background stars like a dark cloud on a moonless night in this intriguing new image.


Naming Our Home Supercluster of Galaxies

Naming Our Home Supercluster of Galaxies

Researchers are proposing a new way to evaluate these large-scale structures by examining their impact on the motions of galaxies.


Hubble Looks at Light and Dark in the Universe

Hubble Looks at Light and Dark in the Universe

This new NASA/ESA Hubble Space Telescope image shows a variety of intriguing cosmic phenomena.


Magnetar Discovered Close to Supernova Remnant Kesteven 79

Magnetar Discovered Close to Supernova Remnant Kesteven 79

Massive stars end their life with a bang, exploding as supernovas and releasing massive amounts of energy and matter. What remains of the star is a small and extremely dense remnant: a neutron star or a black hole.


Why Sibling Stars Look Alike

Why Sibling Stars Look Alike

The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists at the University of California, Santa Cruz.



More top stories from September.