I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.

AN INTERSTELLAR space rock zooming through our solar system may be the oldest comet ever seen by humans, according to ...

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

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

A giant gas planet comparable in size to Saturn exists around a small red dwarf star. The discovery is beyond the scope of ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...

The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

American space agency NASA announced the discovery of a planetary system that isn't flat, has transit timing variations, and shows orbital planes tilting ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

NASA has made a new out of this world discovery. NASA's James Webb Space Telescope recently captured evidence of a new planet ...

Since its debut in 2021, the James Webb Space Telescope has dazzled viewers with its infrared images of galaxies, nebulae, ...

The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. If you include the ...