The University of Chicago is ending its support for Yerkes Observatory, a historic, castle-like building built to house a gigantic telescope, on October 1st. Its future remains unclear.
Hubble reveals a relic galaxy, Dawn sees the surface of asteroid Ceres changing, and scientists probe an auroral phenomenon named "Steve."
Stephen Hawking, renowned physicist, famed science communicator, and all-around inspiration, has passed away at the age of 76.
Hubble's powerful eye scouts the outer planets once an Earth year, shedding light on planetary weather, like Jupiter's Great Red Spot and Neptune's Great Dark Spot.
Planet interactions are thought to be common as solar systems are first forming and settling down. A new study suggests that these close encounters could have a significant impact on the moons of giant exoplanets — and they may generate a large population of free-floating exomoons.
Got any plans in 46 million years? If not, you should keep an eye out for PSR J1946+2052 around that time — this upcoming merger of two neutron stars promises to be an exciting show!
NASA’s Juno spacecraft has found breathtaking cyclones at Jupiter’s poles and probed how deep the planet’s jet streams go.
China's premier space station, Tiangong 1, has a one-way ticket into the Earth's atmosphere later this month. See it before it's no more.
A series of 11 sounding rocket flights from two remote locations in the Arctic circle will help unlock the secrets of the processes behind the Northern Lights.
A long-ago encounter between our galaxy and an orbiting dwarf might have ejected some of the Milky Way’s stars.
A non-partisan government office has issued a report warning of additional delays for the James Webb Space Telescope, which could pit the mission against its funding cap.
Want to learn how to take stunning photos of dazzling Aurora? Join Sky & Telescope's live webinar on Monday, March 5th, with National Geographic photographer and founder of The World at Night (TWAN) program Babak Tafreshi as he reveals his techniques for capturing stunning images and time-lapse videos of both northern and southern lights. As…
In a new twist on the giant impact theory, a new idea posits that the Moon might have formed from the vaporized remains of Earth after an epic collision with another planet-sized body.
With winter's chill fading away, this is a great time to gaze up into the stars — and to be ready for an evening appearance by fleet-footed Mercury. This month's astronomy podcast guides you around the nighttime sky.
A simple experiment has detected a signal from the first stars forming just 180 million years after the Big Bang. The observations have intriguing implications for the nature of dark matter.
As part of a major survey of evolved stars, scientists have discovered the most eccentric planet known to orbit a giant. What can we learn from this unusual object before it’s eventually consumed by its host?
It turns out that neutron stars — not black holes — power at least some ultraluminous X-ray sources.
Astronomers have detected a torus rotating around the supermassive black hole at the center of spiral galaxy Messier 77, collecting observations that may shed light on why these weird structures exist.
Supermassive black holes en route to merger have strange dynamics in their gas disks. Astronomers have spotted the most distant spectroscopically confirmed supernova. And NSF decides the fate of the Arecibo Observatory.
In 2016 an amateur astronomer was testing his camera — and captured the first flash of a supernova.
The recent budget proposal for NASA dealt a blow to the astronomical community, putting several key missions — including WFIRST, a successor to Hubble — under the financial axe.
Scientists have finally confirmed a decades-old theory on what causes the faint flickering seen in the Northern Lights toward dawn.
AAS Chambliss Award winner Donald Bruns explains how he confirmed Einstein's predictions during the 2017 total solar eclipse.
The recent discovery of a new type of tiny, star-forming galaxy is the latest in a zoo of detections shedding light on our early universe. What can we learn from the unique “little blue dots” found in archival Hubble data?
Newly-discovered asteroid 2018 CB will be passing only about 44,000 miles away Friday and visible in modest telescopes.