101–120 of 125 results

Milky Way

Neutron Star Gobbles Gas, Burps X-rays

Astronomers have observed a neutron star flaring to 10,000 times its original brightness.

Milky Way

Oddball Stars in the Milky Way's Heart

The first blue stragglers identified in the Milky Way’s bulge pose a question: why do they look so young?

Astronomy and Society

A Milky Way Masterpiece

Using a deceptively simple setup, Randy Halverson has captured the galaxy's motion across his South Dakota farm with breathtaking beauty and realism.

Milky Way

The Milky Way's New Arm

Astronomers have struggled for decades to discern our galaxy's true shape. But they're slowly getting the picture, thanks to the discovery of a long arm that traces the grand spiral to its outer limits.

Milky Way

Do Planets Outnumber Stars?

Just-released observations suggest that the Milky Way could teem with hundreds of billions of free-floating planets.

Stellar Science

A Runaway Star with a Story To Tell

Now streaking away in the Milky Way's outermost halo, HE 0437-5439 had a very close run-in with the galaxy's central black hole. And that was just the beginning.

Stellar Science

The Milky Way's Killer Instincts

Don't let its graceful spiral form fool you: our home galaxy is a cannibal. It's long been accused of having gobbled up smaller dwarf galaxies in its vicinity — and two new observations make an ironclad case for the prosecution.

Milky Way

Supernovae: Cosmic-Ray Superfactories

Now we know for sure. The cosmic-ray particles that bombard Earth from deep space originate in very exotic places: the shock waves in supernova remnants.

Stellar Science

The Lost Siblings of the Sun

The Sun and solar system formed 4.6 billion years ago amid a rich cluster of other newborn stars. Where are they now?

Milky Way

Milky Way Doubles Its Mass

Our Milky Way Galaxy rotates 15 percent faster and is twice as massive as formerly believed — making it an equal match for the Great Andromeda Galaxy rather than its little brother.

Milky Way

Milky Way's Central Monster Measured

Astronomers have refined the mass of the Milky Way's central black hole by tracking the orbits of several stars whizzing around it. The job hasn't been easy.

Stellar Science

Eta Carinae Prepares for X-ray Crash

Known for its mysteriousness, one of the galaxy's most massive stars gears up for its periodic pundit-perplexing event. Will Eta Carinae finally reveal its secrets?

Milky Way

The Most Massive Star Yet?

Searching the core of one of the densest young star clusters in the Milky Way, scientists may have beat out primetime TV in the search for the newest big star.

Milky Way

The Milky Way Remapped

Two new sky surveys shed light on the structure of our home galaxy.

Milky Way

Predicting a Stellar Catastrophe

Observations made by professional and amateur astronomers during the upcoming, once-in-a-generation eclipse of Epsilon Aurigae may reveal whether or not the star is heading for extinction.

Milky Way

The Milky Way's Most Recent Supernova

Hidden behind interstellar clouds is a blast wave from a star that blew up as recently as 1850.

RS Puppis and surrounding nebula

Milky Way

An Ingenious, Super-Good Cepheid Distance

Using a star's pulsations, their reflections, and some simple geometry, European astronomers have set a new record for the best-known distance to a crucial kind of star.

Dust lanes in Rosette Nebula

Milky Way

200 Million Objects Shining in Hydrogen

A new sky survey is seeing the universe in a new way.

Milky Way

There Might Be Supergiants

A new view from the Hubble Space Telescope reveals the goings on in a cluster full of massive stars.

Milky Way

Measuring Neutron Stars Exactly

Astronomers can measure a neutron star's diameter by effects of gas skimming around its surface at 40% of light speed.

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