What: A forward-looking SETI Live discussion examining the most significant space science missions, discoveries, and ...

The interstellar comet 3I/ATLAS arrived looking like a routine icy visitor and then promptly started shredding the rulebook that astronomers use to understand these objects. From its skewed tail to ...

Researchers used powerful radio telescopes to scan 3I/ATLAS for signs of alien technology.

Harvard astrophysicist Avi Loeb identifies 18 anomalies of interstellar object 3I/ATLAS, raising questions about whether it ...

It has been 10 years since Christopher Nolan's cinematic masterpiece Interstellar was released, and in this video, I take a ...

NASA's most distant spacecraft had a critical thruster problem far from home. Fixing it required a long-distance call to overcome extreme cold and dwindling power. When you purchase through links on ...

Interstellar comet 3I/ATLAS is about to make its closest appearance to Earth today. This event is significant for astronomers studying the object. The comet offers a rare opportunity to examine matter ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American In an earlier blog post about Christopher ...