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

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

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

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

R esearchers have calculated one of the most precise estimates for the expansion rate of the universe today, and it turns out ...

A team of astronomers using a variety of ground and space-based telescopes including the W. M. Keck Observatory on Maunakea, ...

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

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

As a cold pour hits the glass at The Sycamore in the Mission District, chatter rises, lights dim slightly, and Astronomy on Tap eases into motion, blending a little stargazing spirit with a laid-back ...

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

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

A joint effort between two of the world’s largest neutrino experiments has brought scientists closer to understanding how the ...