A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

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

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

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