New research shows stellar flybys are common in our galaxy’s crowded center. That could have both good and bad (but mostly bad) effects on growing planets.
Stunning images of the night remind us why we need to protect dark skies. See the photos that won the International Dark-sky Association's contest.
NICER and SEXTANT demonstrate XNAV pulsar navigation system that may be used on Artemis.
Astronomers think they’ve detected a flash created by the merger of two black holes.
Astronomers have caught a black hole colliding with a mysterious companion that might be either one of the most massive neutron stars or the smallest black hole ever detected.
This week, astronomers announce a newborn magnetar and a fast radio burst that's bursting to a beat.
The 30-degree circular arc is likely a shock front expanding from a star that exploded some 100,000 years ago.
NASA's New Horizons mission deep in the Kuiper Belt has measured the parallax to two nearby stars with the help of Earth-based observers.
Calculations suggest how black holes have amassed mass and predict what the black holes’ spins should be if this picture is correct.