Earth has a number of mini-moons and quasi-moons. Mini-moons are objects that orbit our planet. But they make for fickle fans: They tend to swing around Earth for only a matter of months. One example ...

Kevin France, a professor of astrophysics at the University of Colorado Boulder, discusses the Habitable Worlds Observatory, ...

Hubble has captured a dense, burned-out star in the act of consuming a Pluto-like object. Happening some 260 light years from Earth, the new observation, published in the Monthly Notices of the Royal ...

A new study challenges the dream of water-rich “Hycean” planets like K2-18b, suggesting that most sub-Neptunes lose their water deep into their interiors during formation. Instead of vast oceans, ...

In our nearby stellar neighborhood, a burned-out star is snacking on a fragment of a Pluto-like object. With its unique ultraviolet capability, only NASA's Hubble Space Telescope could identify that ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...

University of Warwick astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being consumed by a white dwarf ...

Any initial sense of can-do energy may find itself facing a roadblock or two today. The Moon begins by entering courageous Leo, strengthening us to put ourselves out there. We may not get far, ...

Liquid uranium rockets could make the Red Planet a six-month commute.

Warner Bros. Discovery's fundamentals show limited growth, heavy debt, and reliance on cost-cutting. See more on WBD stock ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and ...