N ASA’s Europa Clipper spacecraft is on its cruise to explore Jupiter’s mysterious ice moon, Europa. On this path, it clicked ...

NASA unveiled close-up pictures on Wednesday of the interstellar comet that’s making a quick one-and-done tour of the solar ...

Night-side flashes on Jupiter are giving planetary scientists a rare look at how this giant world behaves when it turns away ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

While none of the spacecraft have cameras perfectly designed to spot comets zipping by at speeds up to about 153,000 miles ...

Late one morning this fall, a man arrived at the workshop behind John Weir’s Toronto home, carrying an unusual, humidity-controlled case. Weir, sitting at his workbench, knew who it was right away.