Astronomers have long been intrigued by the makeup of the asteroid belt’s largest body. When it was first spotted in 1801, Ceres appeared dry and rocky, its surface marked by craters and dents. For ...

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the sun and eight planets as ...

NASA’s James Webb Space Telescope has enabled another long-sought scientific breakthrough, this time for solar system scientists studying the origins of Earth’s abundant water. Using Webb’s NIRSpec ...

NASA's James Webb Space Telescope turned to the famed ringed world of Saturn for its first near-infrared observations of the planet in 2023. The Oort clous is thought to have been formed by remnants ...

*Refers to the latest 2 years of stltoday.com stories. Cancel anytime. This scene from the new Hayden Planetarium Space Show "Encounters in the Milky Way" at the American Museum of Natural History ...

Astronomers used the NASA/ESA/CSA James Webb Space Telescope to image the warm dust around a nearby young star, Fomalhaut, in order to study the first asteroid belt ever seen outside of our Solar ...

The comet blazing into South Carolina skies this weekend won't zoom by Earth again for another 80,000 years. It emerged from the mysterious Oort Cloud, a bubble-shaped phenomenon that contains our ...

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the Sun and eight planets as it extends trillions of miles into deep space. The spherical shell known as ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally. Occasionally, some wayward gravitational perturbation will knock one of ...