Astronomy TOP STORY

Stars in Our Galaxy Move Far from Home

© SDSS

Stellar orbits in the Milky Way

When it comes to our galaxy, home is where the star is.


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Stormy seas in Sagittarius Video in Story

© STSCI

Lagoon Nebula

Some of the most breathtaking views in the Universe are created by nebulae hot, glowing clouds of gas.

Brown Dwarfs Host Powerful Auroral Displays

Brown Dwarfs Host Powerful Auroral Displays Video in Story

Brown dwarfs are relatively cool, dim objects that are difficult to detect and hard to classify.


First Detection of Lithium From an Exploding Star

First Detection of Lithium From an Exploding Star

The chemical element lithium has been found for the first time in material ejected by a nova.


The Densest Galaxies Known

The Densest Galaxies Known

Two undergraduates at San Jose State University have discovered two galaxies that are the densest known.


Impact of Cosmic Wind on Galaxy Evolution

Impact of Cosmic Wind on Galaxy Evolution

Astronomers have long known that powerful cosmic winds can sometimes blow through galaxies, sweeping out interstellar material and stopping future star formation. Now they have a clearer snapshot of how it happens.


Born-again Nebula

Born-again Nebula

Beneath the vivid hues of this eye-shaped cloud, named Abell 78, a tale of stellar life and death is unfolding.


Simulated Map of Satellite Galaxies Could Answer Dark Matter Puzzle

Simulated Map of Satellite Galaxies Could Answer Dark Matter Puzzle

A ripple in the outskirts of the Milky Way -- and a hunch -- led Rochester Institute of Technology astrophysicist Sukanya Chakrabarti to a previously undetected dwarf galaxy hidden under a veil of dark matter.


Brown Dwarfs and Stars Share Formation Process

Brown Dwarfs and Stars Share Formation Process

Astronomers using the Karl G. Jansky Very Large Array (VLA) have discovered jets of material ejected by still-forming young brown dwarfs.


Pulsar Punches a Hole in a Stellar Disk

Pulsar Punches a Hole in a Stellar Disk

A fast-moving pulsar appears to have punched a hole in a disk of gas around its companion star and launched a fragment of the disk outward at a speed of about 4 million miles per hour.


ALMA Witnesses Assembly of Galaxies in the Early Universe for the First Time

ALMA Witnesses Assembly of Galaxies in the Early Universe for the First Time

The Atacama Large Millimeter/submillimeter Array (ALMA) has been used to detect the most distant clouds of star-forming gas yet found in normal galaxies in the early Universe.


New 3-D Model Could Solve Supernova Mystery

New 3-D Model Could Solve Supernova Mystery

Giant stars die a violent death. After a life of several million years, they collapse into themselves and then explode in what is known as a supernova.


Starry Surprise in the Bulge

Starry Surprise in the Bulge

A team led by Andrea Kunder from the Leibniz Institute for Astrophysics Potsdam (AIP) measured the velocity of a sample of 100 old RR Lyrae stars* thought to reside in the galactic bulge, the central group of stars found in most galaxies.


Constellation Argo's Hidden Cargo

Constellation Argo's Hidden Cargo

The constellation of the great ship Argo Navis used to bob along the watery southern horizon of the Mediterranean during times of antiquity.


Astronomers Bring a New Hope to Find 'Tatooine' Planets

Astronomers Bring a New Hope to Find 'Tatooine' Planets

Sibling suns -- made famous in the "Star Wars" scene where Luke Skywalker gazes toward a double sunset -- and the planets around them may be more common than we've thought, and Cornell University astronomers are presenting new ideas on how to find them.


Fermi Sees Record Flare from a Black Hole in a Distant Galaxy

Fermi Sees Record Flare from a Black Hole in a Distant Galaxy Video in Story

Five billion years ago, a great disturbance rocked a region near the monster black hole at the center of galaxy 3C 279.


Hubble Looks at Spiral Galaxy LEDA 89996

Hubble Looks at Spiral Galaxy LEDA 89996

This little-known galaxy, officially named J04542829-6625280, but most often referred to as LEDA 89996, is a classic example of a spiral galaxy.


NGC 2346 - A Cosmic Butterfly's Delicate Wings

NGC 2346 - A Cosmic Butterfly's Delicate Wings

NOAO scientists, using the Gemini Observatory 8-meter telescope in Chile, have obtained the highest resolution image ever obtained for the planetary nebula NGC 2346.



More top stories from August.