The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond ...

WASP-121b is unlike anything in our Solar System. This giant planet orbits its star so closely that it completes a full orbit in just 30.5 hours. Its dayside reaches a scorching 3000°C, while the ...

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to ...

Here's everything to know about the James Webb Space Telescope, and what it captured on its three-year anniversary observing the cosmos. To mark Webb's third year of operations, NASA shared an image ...

On June 14 and 16, technicians installed solar panels onto NASA's Nancy Grace Roman Space Telescope, one of the final steps ...

Solar flares, blasts of plasma gasses of solar energy might shape the short-term weather on distant planets according to a ...

There was also Comet C/2023 A3 (Tsuchinshan-ATLAS), which became visible to the naked eye during late summer and early autumn ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Ancient meteorite reveals a protoplanet formed in the outer Solar System earlier than thought, reshaping planet formation ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet Center of comet 3I/ATLAS on July 1, 2025.

Recreating artificial solar eclipses in space could help astronomers decipher the inner workings of our sun much quicker than ...