This opens a window into a time when the universe was still forming its first complex molecules, when gas and dust clouds were coalescing into the earliest generations of stars and worlds. In effect, ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Felton Davis offered thousands of strangers a close-up view of the Moon and planets orbiting New York City. Now he’s passing the telescope on.

This is a good time to see the Milky Way, which is part of our own galaxy. Looking to the south from late evening ... by the waning crescent Moon on the mornings of the 21st and 22nd. Jupiter might be ...

Macquarie University astronomers have tracked an extreme planet's orbital decay, confirming it is spiraling toward its star in a cosmic death dance that could end in three possible ways.

"The biggest surprise of all was that the black hole was not located inside either of the two nuclei but in the middle. We asked ourselves: How can we make sense of this?" ...

Astronomers have uncovered a massive, hidden exoplanet nestled in the dusty disc of a young star—MP Mus—by combining ...

Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.

To mark its second anniversary of operations, James Webb Space Telescope scientists share a stunning view of the Penguin and Egg galaxies as they slowly collide.