In Orbit You Have to Slow Down to Speed Up

Driving a spacecraft around a planet isn’t anything like driving on a planet. A physicist explains orbital navigation.

Massive comet zooming through solar system could be alien technology, Harvard astrophysicist says

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...
Live Science

'Oumuamua isn't an alien spaceship — it's a rock that's farting hydrogen, new study suggests

The release of hydrogen from within 'Oumuamua may explain some of the interstellar object's strange behavior. When you purchase through links on our site, we may earn an affiliate commission. Here’s ...
New Scientist

Einstein was right about how extremely massive objects fall in space

Even in some of the most extreme areas in the universe, Albert Einstein’s theory of general relativity seems to hold up. A test of a key tenet of general relativity using three stars has shown that ...