SUNSET: 
“Shadow Blaster” Galaxy Might Have Sent High-Energy Neutrino to Earth
A star-forming galaxy in the early universe might have sent a ghostly particle known as a neutrino crashing into the ice at Earth’s South Pole, after an 11 billion-year journey through space.
Revival of Australia’s Molonglo Radio Telescope
Australia's Molonglo Observatory was saved from retirement; now, it holds the promise of future radio observations.
Catching the Earliest Stars in the Universe
New observations from the James Webb Space Telescope might have caught the signature of the universe's first stars.
Molten Sulfurous World Blurs Exoplanet Categories
An oddly low-density planet isn't quite rocky or gaseous — instead, it might have a deep ocean of magma and a stinky, sulfurous atmosphere.
Merged Stellar Pairs May Orbit the Milky Way’s Black Hole
The merged remnants of stellar pairs may orbit the Milky Way’s central, supermassive black hole.
Black Hole Eats through Star, Explodes it from Within
The longest-duration burst of gamma rays on record might mark the moment a black hole tunneled through a star and blew it up from within.
Baby Planet Clears Gap in Young Protoplanetary Disk
With the Very Large Telescope in Chile, astronomers have spotted a planet forming around a star 430 light-years away.
Weird X-ray Flashes Lose Some of Their Mystery
Some fast X-ray transients — quick flashes of energetic radiation — may come from massive stars collapsing and exploding at the same time.
A Fast Radio Burst from the Early Universe
Astronomers at the South African MeerKAT observatory have discovered the most distant flash of radio waves to date, most likely stemming from activity around a magnetar.
Were the Very First Stars Really That Massive?
New research suggests the first stars weren't the behemoths we expected them to be — which might explain why we haven't seen them yet.
Exotic Fast Radio Burst Goes Up in Smoke
Finding out where on the sky these mysterious radio flashes come from is hard. The team behind the discovery of one odd signal has now retracted their claim.
Giant Gas Cloud Discovered 300 Light-Years from Earth
Astronomers have just spotted for the first time a huge cloud of cold hydrogen gas just 300 light-years from Earth.
The Extremely Large Telescope: Our Biggest Eye on the Sky
Sky & Telescope's Govert Schilling visits what will be the world's most powerful optical telescope — the Extremely Large Telescope in Chile.
Vera Rubin Observatory: Astronomy’s New Workhorse
In February 2025, Sky & Telescope contributing editor Govert Schilling visited three new astronomical observatories in northern Chile. This is the second of a three-part blog series.
Simons Observatory: Big Bang Examiner
In February, Sky & Telescope Contributing Editor Govert Schilling visited three new astronomical observatories in northern Chile. This chronicle of the Simons Observatory is the first of a three-part blog series.
Tiny Disks Shed Light on Super-Earth Origins
A team of astronomers has obtained high-resolution images of all known protoplanetary disks in the Lupus star-forming region.
Cosmic Fog Lifted Earlier Than Expected
New observations show that the universe's first light penetrated the fog of the cosmic dark ages just 330 million years after the Big Bang.
Ultra-Energetic Electrons from Our Astronomical Backyard
Scientists have found the highest-energy cosmic-ray electrons yet, and their source might be surprisingly nearby.
A Radio Burst from a Giant "Dead" Galaxy
Exotic magnetars make brief, powerful flashes of radio waves — but a new discovery suggests there may be more than one way to make a magnetar.
A Visiting Star Might Have Reshaped the Outer Solar System
Billions of years ago, the close pass of another star might have sculpted the outer regions of our solar system.
