Astronomy

An enormous glowing cloud that contains approximately 3,400 solar masses worth of gas has been discovered near the solar system

Amazon has launched its first operational Project Kuiper satellites in its attempt to compete with SpaceX’s Starlink—but experts remain concerned about space debris and astronomy

We present a historical romp through Scientific American—100 years ago.

Happy anniversary to the Hubble Space Telescope, which launched on April 24, 1990

Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope

ORCs—odd radio circles—are one of the weirdest recent discoveries in the heavens above

Leaked budget documents indicate that key NASA and NOAA research projects, such as crucial climate research and the Nancy Grace Roman Space Telescope, are at risk of being defunded in 2026

NASA’s James Webb Space Telescope provided a closer look at the aftermath of a star that wreaked violence on its planet

At the lower end, and to the bitter end, defining a star is tougher than you might expect

New observations from the James Webb Space Telescope show that the potentially hazardous asteroid 2024 YR4 is a building-sized space rock

The next year of science on the James Webb Space Telescope has been announced amid mounting budgetary uncertainty that could affect the unparalleled observatory

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists are coping