Astronomers have long puzzled over how some massive galaxies stop forming stars and remain dormant for billions of years—even ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

For the first time, astronomers have confirmed the existence of a rogue planet, one that doesn't orbit a star, by measuring ...

Astronomers have spotted an Earth-sized planet drifting alone through the Milky Way, detected briefly by bent starlight, ...

Astronomers have measured the mass and distance of a rogue planet using gravitational microlensing observed from Earth and ...

Astronomers have signalled the discovery of a planetary body roaming the Milky Way that is not gravitationally bound to the ...

From a window on the International Space Station, astronauts have captured a rare view of a nearby galaxy caught in the act ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Witnessing the Milky Way is a profound experience. This article highlights ten premier global locations for stargazing. From ...