An intriguing religious issue is raised by an odd space-age colloquy in mid-February between Barack Obama and Donald Trump.

NASA has provided new details about its plans to procure a Mars communications orbiter funded under last year’s budget ...

Experts remain highly skeptical, questioning the financial feasibility and the technological limitations of running orbital ...

Created by the solar wind — a stream of charged particles constantly pouring out from the sun — the heliosphere acts as a ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Why did a $72 million mission to study water on the moon fail so soon after launch? A new NASA report has the answer.

Green Bank Telescope rules out alien signals in interstellar comet 3I/ATLAS after rigorous scientific deep search.

Does NASA have files on aliens? Jared Isaacman says no, and tells Ross Douthat on “Interesting Times” that extraterrestrials ...

Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

America was winning the race to find Martian life. Then China jumped in. In July 2024, NASA’s Perseverance rover came across ...

Can NASA and Elon Musk get us to Mars and beyond?