421–440 of 554 results
Stella Kafka

People, Places, and Events

Stellar New Director for AAVSO

The appropriately named Stella Kafka has been named the newest in a series of esteemed directors of the American Association of Variable Star Observers.


Professional Telescopes

Closure Averted for World-Class Observatory

The University of Hawai'i, in partnership with the University of Arizona and Lockheed Martin, will sustain operations of the UKIRT infrared telescope.

Galaxy cluster Abell 2744


Ghostly Light From Dead Galaxies

Astronomers are peering into a galaxy cluster’s past, using Hubble’s Frontier Fields to measure the light from ghost stars cast adrift in galaxy collisions.

Eruption on the Sun

Solar System

NASA's IRIS Finds Solar Tornadoes, Bombs, and More

New IRIS results show a Sun rife with twisting and snapping magnetic fields, data that will elicit clues on what bakes the puzzlingly hot corona.

Celestial News & Events

Watch the Partial Solar Eclipse Online

Find out where you can watch the partial solar eclipse taking place on October 23, 2014.

Perseus Cluster


Mysterious X-rays Might Hint at Dark Matter

Astronomers have discovered a spike of X-ray emission in galaxy clusters — “ordinary” interpretations don’t hold up, so some are turning to dark matter for answers.

Asteroid Itokawa

Spacecraft and Space Missions

NASA Amassing Targets for Asteroid Mission

Despite skepticism from scientists and politicians alike, NASA is proceeding with its asteroid redirect mission and has found six candidates for exploration so far.

Black Hole-Jet Simulation

Black Holes

A MAD New Way to Make Black Hole Jets

Newly published observations provide the first real evidence supporting a theory that tells us how black hole jets form.

Infrared dark cloud

Stellar Science

Cooking Up High-Mass Stars

A new study finds every stage of star formation in a single cloud, firmly backing a popular star-formation recipe.

Fornax galaxy cluster, enhanced

Black Holes

Peering Into Black Holes' Pasts

Galaxies’ central black holes are surprisingly simple creatures at heart, but they have a complicated past. New studies are starting to remove history’s obfuscating veil.



Star Cluster Runs Away From Home

A hive of stars is sailing toward Earth at more than 2 million miles per hour — and racing away from the giant galaxy it used to call home.

Supermassive black hole binary

Black Holes

Black Holes Tango in Distant Galaxy

A bizarre X-ray flare first spotted in 2010 could be a signal from two black holes that will ultimately unite into a single beast.

Computer with Sky & Telescope logo

About Sky & Telescope

Welcome to the New SkyandTelescope.com!

The editors of Sky & Telescope are excited to announce that we are unveiling a new look for our website – check back on April 10th for the new design!

Astronomy and Society

Name a Mars Crater with Uwingu

Here’s what you need to know about a new fundraising venture, the race to name 500,000 craters on Uwingu’s Mars map.

Cassiopeia A in X-rays

Stellar Science

Mapping a Supernova's Radioactive Glow

A radioactive element produced near the heart of collapsing stars hints at the mechanism behind Cassiopeia A’s supernova explosion.


Weather-Mapping a Brown Dwarf

Astronomers using a novel technique have mapped a brown dwarf's visible surface — even though they can't resolve the object in telescopes.

Lyman-alpha blob


Lighting Up the Cosmic Web

A rare alignment of a quasar’s “flashlight” beam and a filament of the cosmic web illuminates the universe’s large-scale structure.

Professional Telescopes

Starbugs: Mini Robots Go Observing

Miniature robots crawling along glass plates will help big surveys collect light from hundreds of thousands of galaxies.

Cloudy Super-Earth


Weather on Alien Worlds

From high-altitude clouds discovered on a super-Earth to massive, hurricane-force storms on a nearby brown dwarf, a bevy of results show that the age of “astrometeorology” is upon us.

Astronomy & Observing News

Last Chance to Vote: Comet ISON Photo Contest

The comet's come and gone, we've selected our photo-contest finalists, now it's your turn! Tell us which photos you think should take 1st, 2nd, and 3rd place. The polling booth closes on January 22nd.