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

What happens when you build the largest digital camera on Earth, capable of capturing 3.2 gigapixel images, and aim it at the depths of space from a remote Chilean mountaintop? You get results like ...

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.

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

Hubble Space Telescope images of Jupiter have been "photo-mapped onto a sphere," and animated into a full rotation, according ...

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

At the aphelion, the distance from the Earth’s center to the Sun’s center is going to be 152,087,738 kilometers (94,502,939 ...