Data from the Rosetta mission has linked outbursts on Comet 67P/Churyumov-Gerasimenko with dramatic changes on the comet's surface.
Astronomers have found newborn stars in gas pouring out of a galactic nucleus.
A recently discovered supernova in Lupus now shines around magnitude +11.5, bright enough to see in a modest telescope. With photos and maps, we'll get you there. I wished I lived in Georgia and not just for the peach trees and warmer weather. No, I'd be able to get up early tomorrow morning to marvel at…
The discovery of a runaway star in Hubble's image of the Orion Nebula suggests a stellar tussle ejected three stars 540 years ago.
A new study of six young, star-forming galaxies suggests they have less dark matter than expected. But the results may say more about galaxy evolution than about the nature of dark matter.
Comet 41P/Tuttle-Giacobini-Kresak begins its best showing of the year this week as it slingshots across the Big Dipper into circumpolar skies.
Winds that charge away from supermassive black holes at a fraction of the speed of light have long been mysterious and even contentious. Now, new evidence sheds light on their origins.
Cassini gave us a good look a Saturn's moon Pan last week... and what a strange world it is.
The strange bright deposits inside Occator crater on Ceres are probably from cryovolcanic eruptions that are much younger than the crater itself.
A recent study suggests a plausible mechanism to explain why observers sometimes hear superbright meteors at the same time that they see them.
The star with seven exoplanets puts out enough high-energy radiation to tear away the inner planets’ atmospheres in a few billion years.
On the night of March 4th, all you'll need are your eyes to watch the Moon occult Aldebaran. Better yet, place yourself on the graze line.
Still active today, the Association of Lunar & Planetary Observers and its journal got their start on March 1, 1947.
In this month's easy-to-download podcast, find out how you can spot Venus in both the evening and predawn skies.Late in March, Mercury makes an appearance.
SpaceX's surprise announcement envisions humans traveling beyond low-Earth orbit and to the Moon at the end of 2018.
Hankering to discover new solar systems or understand our own? These citizen science projects and public data troves will help you fill your free time.
Clear skies prevailed across Patagonia in South America, providing intrepid eclipse-chasers with beautiful views of February 26th's annular solar eclipse.
The first naked-eye supernova since the invention of the telescope lit up the global astronomy world on the morning of February 23, 1987, as news spread by phone and teletype. Supernova 1987A in the Large Magellanic Cloud eventually reached magnitude 2.9, before beginning a long fade and a cascade of unexpected developments that continues to…
Die-hard eclipse chasers have journeyed to the Southern Hemisphere to catch a short but dramatically thin "ring" eclipse of the Sun this weekend.
Astronomers have found seven Earth-sized planets around a cool red dwarf, all of which have the potential for liquid surface water.
NASA has announced that its Juno spacecraft will remain in a wide-ranging orbit around Jupiter, extending the mission's lifetime.
Astronomers have discovered long filaments of cold gas — the ingredient for making stars — cocooning giant bubbles inflated by a black hole.
The Dawn spacecraft has detected organic compounds on the dwarf planet Ceres.
Three possible landing sites are now in the running for the U.S. space agency's next Mars rover.
Hubble has spotted more than 100 small, faint galaxies in the young universe, common as dust bunnies but previously out of reach of even the best telescopes.