Yet another Jovian fireball? Amateur astronomers record a rare impact flash in Jupiter's north polar region. Jupiter just got beaned for the 5th time! On the evening of May 26, between 19:24.6 UT and 19:26.2 UT, Sauveur Pedranghelu, a French amateur from Corsica, detected a impact flash live on video in Jupiter's north polar region. The…
Our galaxy's center region is producing gamma rays, but astronomers are still debating whether pulsars or dark matter are the source. Three recent studies tackle the debate head-on.
From its dynamic atmosphere to its hidden depths, the Juno spacecraft has Jupiter as never before — surprising NASA scientists with unexpected complexity.
ASKAP, the Australian Square Kilometre Array Pathfinder has only had a 3.4-day pilot survey and has already found a fast radio burst!
Two recent studies suggest that brown dwarfs, or so-called “failed stars,” are nevertheless more like stars than planets.
Astronomers have confirmed the existence of the seventh planet around the ultracool dwarf star TRAPPIST-1.
Mars was once far wetter than it is now — but just how much rain fell, and when?
Tabby's star, otherwise known as the most mysterious star in the galaxy, is dipping drastically in brightness, giving astronomers an opportunity to figure out what has been causing this star's weird behavior.
A team of researchers led by Benjamin Black (City College of New York) used global drainage patterns of Titan, Earth, and Mars' surfaces to determine the likelihood of recent tectonic activity.
A magnetic field appears to span the space between the Large and Small Magellanic Clouds, the two dwarf galaxies being consumed by our Milky Way Galaxy.
Want to take your eclipse-photography experience to the next level? Get tips on advanced techniques from Fred Espenak, a.k.a. "Mr. Eclipse," during S&T's live webinar on Tuesday, May 23rd. There are now just three months to go until August 21st's total eclipse of the Sun. And, like me, you're probably wondering how much time and…
In just a month, teams will guide this 300-pound, 6-foot-tall humanoid robot in a series of simulated trials as part of NASA’s Space Robotics Challenge.
A brand new supernova in NGC 6946 is bright enough to see in modest-sized telescopes. Here's how to find it.
Astronomers have detected water in the cloud-free skies of "warm Neptune" HAT-P-26b, a clue in the larger mystery of how these planets formed.
Large asteroid 2014 JO25 cruised past Earth on April 19, and Goldstone and Arecibo radars were at the ready to capture what turned out to be yet another twin-lobed asteroid.
Another binocular comet? You better believe it. Comet Johnson takes center stage at nightfall this month and next.
The Chambliss Amateur Achievement Award recognizes excellence in astronomical research by American amateur astronomers. Nominations are now open!
Astronomers have discovered an "iceball Earth" orbiting a star 13,000 light-years away. Multiple eyes on the sky have revealed some of this world's secrets.
The Grand Finale is underway, as NASA's Cassini spacecraft sails through a clear gap between Saturn and its rings.
Ten years ago, La Palma was declared a "Starlight Reserve" and measures were implemented to protect its skies from light pollution. How did they work?
A new galaxy survey suggests that a supervoid isn’t responsible for the Cold Spot seen in the cosmic microwave background — the oddity may have a far more ancient origin.
Listen to May's astronomy podcast to learn why stargazers think of the Big Dipper as the "Swiss Army Knife" of the late-spring northern sky.
Cassini's Grand Finale has begun, as the spacecraft threaded the needle between Saturn and its rings, following several fantastic moon passes and a final glance back at Earth.
Amateur astronomy clubs, planetariums, science museums, and parks celebrate Astronomy Day twice a year, when the public is invited to come learn about the sky and view through telescopes.
The U.S. Postal Service's new Total Eclipse Forever stamp will feature photos by the well-know eclipse expert Fred Espenak, who is also a master of many different kinds of astrophotography.