The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

This NASA Hubble Space Telescope image shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released on ...

Andromeda is the closest large galaxy to the Milky Way. And it is getting closer, as the two will merge in several billion ...

Astronomers are celebrating the completion of a 2.5-billion-pixel panoramic picture of the entire Andromeda Galaxy. The team includes several UC Santa Cruz researchers who made significant ...

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the ...

NASA’s James Webb Space Telescope’s mid-infrared view of interacting galaxies Arp 142 seems to sing in primary colors. NASA’s James Webb Space Telescope has peered into the chaos of the Cartwheel ...

How do images taken by the James Webb Space Telescope (JWST) appear so colorful, and where do the colors come from?

The stars aligned for the planetarium's dome to become the backdrop for four readings of 'REDshift,' by playwright Chalmers ...

It is powered by the movement of electrically charged, molten iron deep within Earth’s outer core ... NASA heliophysics studies the magnetosphere to better understand its role in our space environment ...

Last year was a big one for the space sector, marked by SpaceX’s building momentum, Boeing Co.’s Starliner struggles, and a slew of activity from a host of names. So what can we expect in 2025?

The Hubble Telescope has spotted an unusual spiral galaxy – 76 million light-years away – that resembles an eye ...