Satellite megaconstellations are increasingly impacting astronomical observations. Bright satellite streaks are compromising ...

There is an important and unresolved tension in cosmology regarding the rate at which the universe is expanding, and ...

The filament of matter stretches 50 million light-years, and contains a row of galaxies 5.5 million light-years long that are ...

Depending on how you look at it, the universe might not have an "end," after all. Whether the universe will "end" at all is ...

FROSTI is a new adaptive optics system that precisely corrects distortions in LIGO’s mirrors caused by extreme laser power.

A spiral galaxy, shaped much like our Milky Way, has been found in an era when astronomers believed such well-formed galaxies ...

This exploration examines the Eternal Universe theory, which suggests that the cosmos has no true beginning or end, ...

Observing the wonders of the night sky begins with selecting the right telescope. Join us on Nov. 20, 2025, at 9:00 am EST for Astronomy Unlocked: How to Choose Your Best Telescope. This virtual event ...

A surprisingly mature spiral galaxy named Alaknanda has been spotted just 1.5 billion years after the Big Bang—far earlier ...

Our best theory of the universe might be breaking apart! The new data we're receiving from space telescopes is creating more ...

“Megaconstellations” of vast numbers of satellites could threaten space-based astronomy, scientists have warned.