A radio telescope in South Africa has unearthed a giant galaxy—dubbed a "cosmic megastructure"—with plasma jets that measure ...

Astronomers have unveiled surprising new details about a small galaxy, NGC 300, challenging existing theories on galaxy ...

The Gaia mission of the European Space Agency (ESA) has officially ceased its scientific operations after 12 years of service ...

We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.

A team of astronomers led by University of Arizona researcher Catherine Fielder captured the most precise photographs of a ...

But researchers have used the James Webb Space Telescope, a collaboration of NASA and its European and Canadian space ...

Galaxies like the Milky Way grow by merging with smaller galaxies over billions of years, unlike dwarf galaxies, which have long been thought to lack the heft to attract mass and grow in the same way.

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

A team of astronomers led by University of Arizona researcher Catherine Fielder captured the most precise photographs of a small galaxy and its surroundings re ...

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 ...

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 ...

Nobody and nothing works forever, even space probes retire. The European space probe Gaia ended its work this week after more ...