Astronomers have detected water on interstellar comet 3I/ATLAS with a deuterium-to-hydrogen ratio exceeding 6.6 × 10−3, a ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

A new Southwest Research Institute (SwRI) study based on data from NASA's New Horizons spacecraft has uncovered insights into ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands ...

In the book version of “Project Hail Mary,” author Andy Weir, known for grounding his fiction in plausible science, describes ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

The planets are extremely large, with TOI-791 b being about the same size as Jupiter, and TOI-791 c even larger. Yet, they ...

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...

Based on evidence collected by the James Webb Space Telescope, researchers have found that interstellar comet 3I/ATLAS could ...

An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the ...

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue that ...