SUNSET: 
Have We Found the Black Hole Desert?
Astronomers disagree on whether they’ve found evidence that stars don’t make certain sizes of black hole.
Did Asteroids Once Rain Down on Earth?
A surge of asteroids might have peppered the inner solar system some 800 million years ago, in a short-lived shower that left its mark — literally — on Earth and its neighbors.
Scientists Release the Latest Gravitational-wave Detections
The number of gravitational-wave signals has just doubled with the release of the newest catalog of events.
60-Second Astro News: Light Pollution, Birds, and Zambuto Mirrors
In this roundup of recent news, birds react to light pollution and a respected mirror maker calls it a day.
New Black Hole Merger Breaks Record
Gravitational-wave astronomers have detected the collision of two beefy black holes, which created the most massive merger-made black hole found thus far.
Milky Way’s Chances of Hitting Andromeda Galaxy May Be 50/50
A new analysis of Hubble and Gaia data suggests that our galaxy might survive an upcoming encounter with the Andromeda Galaxy unscathed.
TRAPPIST-1b Atmosphere Debated; Some Stars Take Their Time Forming Planets
In this roundup of recent exoplanet news, we look at whether a famous world is really so airless and at just how long planets take to form.
60-second Astro News: Black Holes and Funding Woes
In this week’s roundup, astronomers wait for a decision about their next-generation megascopes, wonder if big black holes hibernated early on, and find a stellar binary in a challenging environment.
Icy Rivers May Have Flowed on Ancient Mars
A polar cap of carbon-dioxide ice may have provided the thermal blanket needed for rivers and a huge lake to form in the planet’s southern highlands.
Newfound Stellar Companion May Explain Black Hole System
Astronomers have identified a distant stellar tagalong to the binary system V404 Cygni.
Jupiter’s Great Red Spot Shimmies to a Beat
Hubble observations reveal that the storm’s size and shape change in a cyclic pattern.
The Black Hole Files with Camille Carlisle
Event Horizon Telescope Pushes Toward Sharper Images
The worldwide network of radio dishes has achieved the highest resolution ever obtained from Earth’s surface.
Dino-Era Asteroid Came from the Outer Solar System
A new chemical analysis confirms the Chicxulub impactor was a fragile type of asteroid that formed in the outer solar system, unlike several other ancient impactors.
Neutron Star Eaten by Small Black Hole (Probably)
Gravitational-wave astronomers have identified ripples in spacetime from the coalescence of a neutron star with what’s likely one of the smallest black holes ever found.
Video: Plunge into a Black Hole
A new visualization from NASA takes the viewer on a one-way journey into a black hole.
See What Happens When Stars Collide
A star in the constellation Norma appears to have been created when two stars merged.
Strong Magnetic Fields Swirl Near Milky Way’s Black Hole
Astronomers have detected twisted, orderly magnetic fields near the event horizon of Sagittarius A*.
Mystery Objects Uncovered in Globular Clusters
Astronomers have found two different star clusters with an enigmatic source inside. Are these objects neutron stars or black holes?
The Black Hole Shadow in M87: One Year Later
The Event Horizon Telescope collaboration has released the image from its second major campaign, confirming the existence of a persistent black hole shadow and a potentially turbulent environment.
