Earth isn’t a perfect sphere. The rotation of our planet causes it to bulge ever so slightly at the equator, making it about ...

The James Webb Space Telescope was trained on a planet unlike any other we know of, with a strange shape, strange composition ...

The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

Explore HubbleHubble HomeOverviewAbout HubbleThe History of HubbleHubble TimelineWhy Have a Telescope in Space?Hubble by the ...

What a surprise to discover a planet that instantly evokes the Star Wars universe! Instead of a single sun, it orbits two ...

Sunday is the shortest day of the year north of the equator, where the solstice marks the start of astronomical winter. It’s ...

At the Northern Hemisphere’s winter solstice the upper half of the Earth is at its furthest lean away from the sun — leading ...

A number of factors determine the visibility of the moon during the daytime, chief among them the scattering of the sun’s ...

The space object, which was only recently discovered by scientists, will pass closest to Earth on Friday, December 19. Here's ...

The space around Earth has become increasingly cluttered with decades of accumulated debris left over from rocket launches, ...

How galaxies assemble their stars and grow over billions of years remains one of the central questions in astronomy. Recent ...