The brutal heat and high winds whipped up already fierce wildfires, producing giant fire clouds. Here is what it has looked like from space. ...read more
Researchers have spent decades trying to pin down exactly how long a day on Venus lasts. Finding the answer cuts to the core of fundamental mysteries about the planet. ...read more
Some astronomers didn’t like the religious implications of a universe with a beginning. Their alternative was the so-called “steady state model.” ...read more
Researchers tested new light sail tech in the lab and say their design could better steer the tiny, laser-powered interstellar spacecraft. ...read more