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Gravitational waves reveal most massive black hole merger ever detected — one 'forbidden' by current models
By Robert Lea published
Gravitational wave detectors have "heard" the ripples in space caused by the most massive black hole merger yet. One "forbidden" by current theoretical models.

Night sky for tonight: Visible planets, stars and more in this evening's sky
By Jamie Carter last updated
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.

Private Ax-4 astronauts heading back to Earth early July 14: Watch it live
By Mike Wall published
The private Ax-4 astronaut mission will undock from the International Space Station on Monday morning (July 14), and you can watch the action live.

On this day in space! July 13, 1969: Soviet Union launches Luna 15 moon mission
By Hanneke Weitering last updated
On July 13, 1969, the Soviet Union launched its Luna 15 spacecraft on a mission to the moon.

'Pebble' beaches around young stars join together to form planets
By Keith Cooper published
Planetary construction sites around other stars are filled with pebbles, and for the first time radio telescopes have detected these tiny chunks of rock that stick together to form planets.

Experts ask where the center of the universe is
By Rob Coyne published
With the universe constantly expanding, scientists have a hard time finding where its center is.

Feast your eyes on the shortlisted pics for the 2025 ZWO Astronomy Photographer of the Year Awards (photos)
By Anthony Wood published
The winners will be announced during a ceremony in September.

Earth may have at least 6 'minimoons' at any given time. Where do they come from?
By Nola Taylor Tillman published
"It is incredible that modern telescopic surveys have the ability to detect such small objects up to millions of kilometers away."
Breaking space news, the latest updates on rocket launches, skywatching events and more!