The Black Knight satellite conspiracy claims that an ancient alien probe has orbited Earth for 13,000 years, silently observing humanity. The theory traces its roots to early radio experiments by ...

Some say we’ve entered a new age of AI-enabled scientific discovery. But human insight and creativity still can’t be ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Explosive experiment!

Presumption of Regularity Is Gone The pace of this important story is slow by dramatic standards, but by the ...