Robot vacuums have steadily improved their cleaning performance and object avoidance over the years, but during our testing at CNET Labs, we discovered an odd trade-off.

The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

Avi Loeb reports new telescope observations of interstellar object 3I/ATLAS, describing a periodic wobble in its anti-tail and what it reveals about rotation ...

A reader objects to a defense of disparate-impact theory.

The familiar script of planetary defence has been torn up. For decades, the globe's foremost space agencies operated under ...

One proposed way of examining if such a force could exist is by closely monitoring asteroid trajectories, and few near-Earth ...

Scientists have developed a so-called "snake vision" that uses a CMOS with a quantum dot layer that can detect infrared ...

Asteroid 2025 XM’s recent flyby offered a reminder of how closely Earth is watched for cosmic hazards. The plane‑sized object ...

When I go to synagogue, I always smile and wave at the armed police officers stationed outside. I want them to know they’re appreciated, but also, at some level, I guess it’s fair to say that I’m ...