281–300 of 368 results

Stellar Science

Universe is Still Missing its Lithium

New observations of the Small Magellanic Cloud have only heightened the mystery surrounding a decades-long cosmic conundrum: why does the universe have so much less lithium than astronomers think it should?

chemical structure of glycolaldehyde

Stellar Science

Space a Little Sweeter

Astronomers have detected a simple sugar called glycolaldehyde in the gas around two young stars. The ALMA observations that led to the discovery are impressive, but don’t jump on the “life” bandwagon just yet.

Cosmology

WISE Detects Blazing Black Holes

Astronomers using data from the WISE all-sky infrared survey have discovered a new class of luminous galaxies in the distant universe. These objects are rare, super-duper bright, and yet totally invisible in visible light.

Spacecraft and Space Missions

NASA Keeps Focus on Mars

NASA announced this week that its next Discovery mission will follow Curiosity to the Red Planet, but the project — named InSight — has a much different assignment than the rover’s.

Fermi bubbles

Galaxies

Milky Way's Black Hole Once Active

Evidence continues to mount that our galaxy's supermassive black hole was not always the quiet neighbor it is now.

Spacecraft and Space Missions

Messenger Hits Eighth Birthday

NASA's emissary to Mercury just celebrated the eighth anniversary of its launch from Cape Canaveral in 2004. Here's a recap of some of the stuff we've learned about Mercury since Messenger arrived at the Iron Planet.

Galaxies

Star-Shredder's Brief Pulse

A supermassive black hole spotted last year as it ripped a star apart and spat out a jet had another surprise up its sleeve: a short-lived X-ray heartbeat seen only once before from a galaxy’s central beast.

Astronomy and Society

Miss a Sky Event? There's an App for That

Sky & Telescope has released its new SkyWeek Plus app, which combines all the good stuff of our regular SkyWeek app with new reminder and breaking-sky-news features.

Astronomy & Observing News

Sky & Telescope October 2012

Sky & Telescope's October 2012 issue is now available to digital subscribers. Some print subscribers may have already received it, and it's officially on-sale at newsstands starting September 4th.

Galaxies

Andromeda Galaxy’s Odd Double Core

A new study simulating stars as they orbit a black hole might provide the best explanation for how our nearest spiral galaxy neighbor grew its lopsided nucleus.

Cheney in Times Square

Astronomy and Society

AMA Addresses Light Pollution

The American Medical Association has released a report detailing several possible health concerns related to nighttime light exposure. But some lighting researchers worry the conclusions are more alarmist than is warranted.

Celestial News & Events

Sunspot 1520 Rolls Into View

The Sun's spottiness continues with a giant magnetic blotch stretched just below its equator.

Stellar Science

Baby Star's Hot Birthmarks

Astronomers have pinpointed the origin of high-energy X-rays coming from a baby star.

Stellar Science

Waves Might Heat Solar Atmosphere

Astronomers are working to unravel the mystery of the Sun's superhot corona, but new work implicating magnetic waves isn't the final word on the matter.

Astronomy & Observing News

Sky & Telescope August 2012

Sky & Telescope's August 2012 issue is now available to digital subscribers. Some print subscribers may have already received it, and it's officially on-sale at newsstands starting July 3rd.

Cosmology

The Universe’s Lost Lithium

Astronomers are still struggling with a 30-year-old mystery that puts modern cosmology in a head-to-head clash with stellar observations. A new study may make the problem even worse.

Stellar Science

All-Sky Survey Sees Millions of Stars

A collaboration between professional and amateur astronomers is producing a careful map of stellar brightnesses and colors across the entire night sky. The survey should fill a hole that sometimes hampers quick, accurate measurements of events such as supernovae.

Celestial News & Events

2012 Venus Transit: S&T Reports

Clouds, veering cabbies, and old optics didn’t deter committed spectators of this last-chance astronomical event.

Solar System

The "Exoplanet" Venus

Observing the Transit of Venus won’t be just a memorable experience. Astronomers hope the event will help them understand alien worlds around other stars, too.

People, Places, and Events

Pro-Am Teamwork on the Rise

As demonstrated this week during a gathering of observers in Big Bear, California, amateur and professional astronomers are joining forces as never before.

Advertisement
Advertisement
Advertisement
Advertisement