For decades, chemistry students have learned a simple truth: polar and nonpolar substances don’t mix. Water and oil stay ...

Impossible molecular combinations are possible on Saturn’s moon Titan, changing our understanding the potentially ...

Chicago-area residents could be treated to a wonderful nighttime display as Comet Lemmon makes its closest approach to Earth in coming days.

US astronaut, doctor and engineer Mae Jemison became the first Black woman to go into space in 1992. She was one of seven ...

Researchers at Chalmers University of Technology in Sweden and the US space agency NASA have made an unexpected discovery ...

Researchers at Chalmers University in Sweden and NASA have discovered an unexpected chemical interaction on Saturn’s moon ...

A small asteroid, called 2025 TP5, safely flew by our planet on Oct. 15 at about a quarter of the distance to the moon.

A new book and documentary from James Bluemel tells the story of the space race so far in photographs, a mix of images from ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system.

Astronomers have yet to find irrefutable proof for any natural satellites of exoplanets—so-called exomoons—but as ...