The cosmic intruder that exploded in the sky on February 15th dropped thousands of fragments onto the snow-covered plains of south-central Russia. Here's an update on what's been found.
A recent annual meeting of amateur astronomers in Big Bear, California, proved once again that the amateur community is pursuing impressive science endeavors.
From the city lights nestled between Alpine peaks to a single image that captures stars, an aurora, and a meteor, The World At Night's 2013 astrophoto contest is full of startling vistas.
Harvard College Observatory is digitizing its famed collection of more than 500,000 glass sky-survey plates and has just released the first data set.
Not content to let private companies have all the fun in asteroid exploration and exploitation, NASA managers have proposed a high-flying mission that would capture a small asteroid and dispatch astronauts to study it — all within the next decade.
A NASA web-based tool plots trajectories to your favorite planet or near-Earth object.
Still controversial, the annual switch to daylight saving time is annoying to backyard astronomers — and probably doesn't save any energy after all.
The fireball that exploded over Russia on February 15th left more than a million square feet of damaged windows, bringing home how fragile life on Earth can be. Here's what S&T's staff has managed to piece together about what happened.
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.
Forty years after the last human visitors departed the Moon aboard Apollo 17, space historian Andrew Chaikin talks about why we should return.
The man who took humanity's first step on another world is no longer among us.
See through Curiosity's eyes as it descends to the surface of the Red Planet.
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.
A California startup seeks to democratize space research by putting a tiny, custom-built satellite into orbit — and letting the public decide how to use it.
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.
Astronomers warn that it's not a question of "if" Earth will be hit by an asteroid, but "when." If a private group of space veterans has its way, a Sun-orbiting spacecraft will find threatening objects decades before they can strike us.
When it comes to things astronomical, why do so many people with no knowledge of the sky try to figure things out for themselves — and come to the wrong conclusions?
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.
From Comet Lovejoy in the southern skies to the aurora borealis over Iceland, the winners of the 2012 International Earth & Sky Photo Contest find beauty in darkness and show the threat of increasing light pollution.
Never mind what the doomsayers tell you: Remarkable paintings in a room amid Guatemalan ruins prove that the ancient Maya knew more about celestial cycles than we thought — and that they didn't predict the world's end in December 2012.
The full Moon of May 5, 2012, will be the year's closest but not by enough to draw attention.
April 20th is Astronomy Day, when hundreds of astronomy clubs, observatories, museums, colleges, and planetariums worldwide host special family-oriented events and festivities that showcase the wonder and excitement of the night sky.
Hubble is beginning celebrations early for its 22nd birthday with this composite image, a fantastic combination of ground- and space-based observations of the Tarantula Nebula.
Spectacular photos of Earth’s curvature from the atmosphere are just one balloon and camera click away. Able to reach an altitude of more than 20 miles, so-called space balloons are an inexpensive hobby for those with an eye for the sky.
With NASA funding ending, astronomers will soon shut down the optical plumbing that links the giant Keck telescopes — the most powerful interferometer of its kind on the planet.