A contentious yet gifted astronomer, Arp challenged a key underpinning of the Big Bang throughout the 1970s and 1980s and ultimately fell into disfavor among his colleagues.
The "comet of the century" famously lost its battle against the Sun, but you can still enter our photo contest for a chance to win some hefty prizes. Don't miss the December 31st deadline!
New gear, hands-on demos, and renowned speakers awaited visitors to last weekend's astronomy expo in Tucson, Arizona.
From high over the western Atlantic to the sandstorm-swept plains of northern Kenya, adventurous eclipse-chasers converged along the Moon’s ultra-narrow shadow on November 3rd to get fleeting views of the Sun’s blackened disk.
Almost 200 science journalists, teachers, photographers, and amateur and professional astronomers met in Warsaw, Poland, to discuss better ways of communicating astronomy with the public.
When astronomers discovered the first objects orbiting between Mars and Jupiter, at first they didn't know what to call them. Today we know them as asteroids, and the creator of that term has finally been identified.
Meteorite specialists around the world have wondered whether a massive fragment of the Chelyabinsk mini-asteroid would ever be resurrected from the murky bottom of Lake Chebarkul in Russia. Today they got their answer.
The 2013 Nobel Prize in Physics has been awarded to two physicists who postulated the existence of the Higgs field, the source of many elementary particles' masses. For those still scratching their heads on what the Higgs is, here's what you need to know.
Stargazers in Great Britain learned this week that their beloved broadcast about all things celestial, inaugurated by the late Patrick Moore in 1957, might be canceled at year's end.
Exoplanet hunter and S&T author Sara Seager is among 24 scientists and artists granted one of 2013’s prestigious MacArthur Fellowships, commonly known as the “genius grant.”
The 17-day strike at the world’s largest ground-based observatory ended Saturday, and ALMA's revolutionary observations of the millimeter/submillimeter sky restart today.
Who would have thought that, just 30 miles from a California city of 500,000+, you'd find some of the best stargazing in all of North America?
The Summer Star Party in western Massachusetts, held just before Stellafane, had fine clear nights, more than 150 good folks, and lots of scopes at its new location.
Solar physicists hope NASA’s latest space observatory, the Interface Region Imaging Spectrograph, can finally discover what heats the Sun’s million-degree corona.
A few years from now, when you’re floating in a space hotel many miles from Earth, you might want to order some coffee. And PayPal wants to make sure you don’t have to pay in cash.
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.
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.
"Globe at Night" is a fun, easy, and worthwhile activity for you and your family. Please join this worldwide campaign to measure the darkness of night skies everywhere from April 29th to May 8th.
A group of 90 people from around the U.S. and the world joined S&T in early April for an aurora adventure in Iceland.
This year's April Fools' was a productive day for astronomers — catch up on all the shenanigans.
As we celebrate the golden anniversary of quasars' discovery, some astronomers are pausing to question the direction of the field.
The future is now — the world’s most powerful radio telescope array was inaugurated yesterday.
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.
Friday's meteorite explosion over Russia offers the strongest motivation yet for investigation of near-Earth objects.
S&T contributing editor Govert Schilling tells the story of his recent expedition to the unique science laboratory located at the inhospitable South Pole.