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.

To mark its third year of highly productive science, astronomers used the NASA/ESA/CSA James Webb Space Telescope to scratch ...

Hubble Space Telescope imagery created an HD look at the gas giant planet Jupiter. Credit: NASA Goddard Space Flight Center ...

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

The JWST could see a 25-35% reduction in operations, and some Hubble instruments may have to fend for themselves.

Bluish-white Regulus in Leo is moving toward the western horizon and sets around 10 p.m. in mid-July, followed a couple of ...