541–560 of 618 results

Black Holes

When Supergiants Explode

Astronomers have announced a new class of gamma-ray bursts, possibly created when some of the biggest stars in the universe go supernova.

New type of supernova

Stellar Science

A New Type of Supernova

Astronomers have discovered a new supernova class where the star might survive the explosion.

Black Holes

Black Hole Wakes for a Light Snack

Astronomers might have glimpsed a supermassive black hole snacking on a brown dwarf in a galaxy 47 million light-years away.

Milky Way

Can Stars Form in our Galaxy's Center?

Observations of Milky Way’s chaotic center show hints of stars forming just two light-years away from our galaxy’s supermassive black hole.

Space Missions

Possible Dark Matter Signal?

Scientists using an instrument aboard the International Space Station have measured a signal that might come from dark matter — or might not.

People, Places, and Events

Scientists Share Absurdly Exciting News

This year's April Fools' was a productive day for astronomers — catch up on all the shenanigans.

Quasi-Periodic Oscillation (QPO)

Star-Shredders in Action

In the cover story of the June 2013 issue, Suvi Gezari takes us into the den of hibernating black holes, showing us what happens when a star tickles the nose of a powerful beast: the black hole rips the unlucky star apart, lighting a flare that can be seen from…

Trajectory Browser

Astronomy and Society

Mission Planning for the Public

A NASA web-based tool plots trajectories to your favorite planet or near-Earth object.


People, Places, and Events

Fifty Years of Quasars...And Fifty More?

As we celebrate the golden anniversary of quasars' discovery, some astronomers are pausing to question the direction of the field.


Interview with Exoplanet Expert Greg Laughlin

An artist's illustration of a potential exoplanet named Fomalhaut b. If it exists, this planet may have migrated to its current orbit.ESA / NASA / L. CalcadaIn the May 2013 issue of S&T, astrophysicist Greg Laughlin of the University of California, Santa Cruz — a leading expert on extrasolar planet…

People, Places, and Events

Alma Observatory Inaugurated

The future is now — the world’s most powerful radio telescope array was inaugurated yesterday.

Black Holes

Mystery Structure Around Black Hole

An X-ray flare revealed a bizarre black hole binary system, where a mysterious, moving structure blocks its visible light.

Solar System

Scorching Rain on the Sun

NASA's Solar Dynamic Observatory captures "coronal rain," a beautiful and mysterious phenomenon on the Sun.

Milky Way

Baby Black Hole Discovered

Astronomers investigating a supernova remnant see nothing but swirls of gas. The lack of stellar remains means the explosion must have birthed a black hole only 1,000 years ago.


Amateurs Help Hubble Unveil Spiral

Robert Gendler stitched together a stunning mosaic of spiral galaxy M106, filling in gaps in Hubble coverage with his own and Jay GaBany's ground-based observations.

Stellar Science

Harbingers of Death: Predicting Supernovae

A massive outburst may give a month’s advance notice of when certain giant stars will go supernova. That’s not great for evacuation plans, but perfect for observers who want to catch a supernova in action.

Solar System

Water Once Flowed Under Mars's Surface

Fossilized wrinkles in impact craters suggest once again that water might once have flowed on Mars — this time, beneath the surface.

Pro-Am Collaboration

Amateurs Help Find Multi-Planet System

Amateur astronomers perform a crucial role in detecting exoplanets by a technique called microlensing, including the most recent discovery of a multiple-planet system.

FireFly approaches asteroid

Science and Space Policy

Asteroid Mining Gets Competitive

Deep Space Industries, Inc, announced plans to send a fleet of asteroid-prospecting to target asteroids in 2015 — and that’s just the first step in their ambitious proposal.

Milky Way

Mapping the Milky Way

New observations of spaghetti-thin clouds, faraway star-forming regions and mysterious magnetic fields are revealing the hard-to-see structure of the galaxy we call home.