NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage ...

The document builds on the academies' decadal survey, outlining recommended missions for NASA's next New Frontiers program.

NASA has significantly lowered the risk of asteroid 2024 YR4 hitting Earth. Last week, the asteroid had a 3.1% probability of ...

Astronomers have discovered that billions of comets in an icy shell around the solar system called the Oort Cloud mimic the ...

NASA's Lucy spacecraft, on its way to Jupiter's Trojan asteroids, has its next target in its sights: the main belt asteroid 52246 Donaldjohanson. Currently 45 million miles (70 million kilometers) ...

Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

A brilliant comet waved its tail above the site of the world's largest telescope as it lit up the night sky last month.

The NASA boffins in white coats and thick-rimmed glasses have detected new signals that show the Oort cloud - the spooky ...

Sensational "city killer" headlines aside, NASA and the European Space Agency reported the asteroid "has a very small chance" ...

NASAs Lunar Trailblazer satellite, launched aboard a SpaceX Falcon 9 from Florida, aims to map water on the Mooncrucial for ...

The noon Sun stands directly over Earth’s equator at 5:01 a.m. EDT on March 20. This point is the vernal equinox, or simply ...