A new processing technique has revealed once-invisible planetary disks encircling five stars imaged in Hubble’s archive.
Amateur astronomers have teamed up with the pros to produce four stunning multiwavelength images of galaxies M101, M81, M51, and Centaurus A.
Miniature robots crawling along glass plates will help big surveys collect light from hundreds of thousands of galaxies.
Astronomy is ready for the next generation of detectors, and superconductors are at the heart of the coming revolution.
After four years of exquisite observations, the latest mission to study the universe's earliest light has been shuttered. But this end is a happy one and comes with a significant cosmological legacy.
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.
Threatened by NSF cuts, the Green Bank Telescope signed a deal with West Virginia University to receive $1 million over the next two years. But the radio antenna will need more than that to survive long-term.
Time and tide wait for no man. So the XMM-Newton space telescope is making every second count. As the telescope shifts its gaze from source to source, it's recording the X-ray sky.
Twinkle, twinkle, quasi-star: cosmic lenses could tell us what you are.
Solar physicists hope NASA’s latest space observatory, the Interface Region Imaging Spectrograph, can finally discover what heats the Sun’s million-degree corona.
The stars were not aligned when one of Sky & Telescope's editors signed up to ride NASA's Stratospheric Observatory for Infrared Astronomy.
From international travel to interplanetary probes, the U.S. budget cuts are having impacts on both ground- and space-based astronomy.
Astronomers have been waiting for our galaxy’s slumbering supermassive black hole to stir for a snack. Instead, the universe handed them a different treat.
After nearly four years of successful observing, the largest infrared space telescope ever launched has run out of cryogenic coolant, permanently ending its science operations.
Astronomers have announced a new class of gamma-ray bursts, possibly created when some of the biggest stars in the universe go supernova.
The future is now — the world’s most powerful radio telescope array was inaugurated yesterday.
NASA’s newest high-energy X-ray telescope has released two stunning images of a stellar explosion and ravenous black holes.
Yesterday bushfires swept through Australia's Warrumbungle National Park, home to Siding Spring Observatory. The telescopes there appear to have escaped harm, but some support facilities and staff homes were destroyed.
For the first time, astronomers have imaged a key stage in planet formation, witnessing the gas streams that signal two gas giant planets sweeping up material around a star.
It's not easy to get to the Murchison Radio Observatory in Western Australia. Being in one of the most remote regions of the country means there's hardly any radio interference that might otherwise compromise the astronomical observations. It's one of the most radio-quiet zones on the planet.
Our galaxy’s central supermassive black hole emits regular, mysterious X-ray flares. For the first time, NASA’s newest sharp-eyed telescope has captured a high-energy view of the action.
The impending closure of the United Kingdom Infrared Telescope might be averted if the observatory’s director can find a buyer.
The Event Horizon Telescope team has unmasked the heart of the jet-shooting galaxy M87, paving the way for astronomers to discover how black holes create their superpowered streamers.
The Dark Energy Camera is one of four new cameras that started taking images of big chunks of the night sky this past month.
Astronomers at Big Bear Solar Observatory in sunny California have upgraded their 1.6-meter telescope with a new adaptive optics system. The scope is now producing the highest-resolution images ever taken of the Sun.