Data from the James Webb Space Telescope and other observatories suggests a supervolcanic exomoon may lurk around the giant ...

Look for the three stars that make up the distinctive formation of Orion's Belt — Alnitak, Alnilam and Mintaka — shining ...

A pair of Sydney Ph.D. students helped sharpen the view of humanity's most powerful space observatory—without leaving Earth.

Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system ...

Greenwich's Royal Observatory is improving access to its buildings and creating new educational and events spaces in a £77m ...

It was put on Webb to diagnose and measure any blur in its images. Even nanometres of distortion in Webb’s 18 hexagonal ...

From how space rocks wobble to where to hit them, scientists are learning the fine art of asteroid deflection — and it could ...

The Royal Observatory in Greenwich has promised “universal access to see what is one of the greatest telescopes in Britain” ...

Astronomers have used a worldwide array of telescopes to spot the smallest dark object ever identified in the universe. Discovering more of these ...

Scientists using a global array of radio telescopes have detected the universe’s lowest-mass dark object by observing how it ...

With no end in sight for the government shutdown, the last reserves of money are running out from Smithsonian Museums.

With temperatures cooling and changing colors in the foliage, fall is one of the best times to visit California’s 280 state ...