I first encountered the three-body problem 60 years ago, in a short story called "Placet is a Crazy Place" by American ...

Mond cannot provide enough gravity either, at least in the central regions of galaxy clusters. But in their outskirts, Mond ...

referring to a worst-case scenario in which space-junk collisions become so likely that they render low-Earth orbit useless for generations.

If you need an orbital sander for your next woodworking project, you may have considered Ryobi's Orbital Sander. Here's what ...

Butch Wilmore and Suni Williams will have to wait for another day to fly to the International Space Station in an orbital ...

However, this handy tool has one confusing aspect: You'll see them for sale described as "orbital" and "random orbital" ...

COLORADO SPRINGS, Co — Sierra Space unveiled a radical new concept for on-demand cargo delivery from Earth orbit. The company aims to land critical supplies anywhere on the planet within 90 ...

In this animated rendering of the three-body problem, three bodies orbit each other in a random manner. (Dnttllthmmnm/Wikimedia Commons) , CC BY We can get a feeling for this if we look at the ...

However, this handy tool has one confusing aspect: You'll see them for sale described as "orbital" and "random orbital" sanders. What is the difference, and which sander is better? The orbital ...

Random motion The plot of 3 Body Problem involves ... consisting of two stars that orbit each other closely over a period of nearly 80 years, and a much more distant third star.

But, intriguingly, the orbit is assumed to be stable and predictable ... a system where the stars are so close together in their orbits that their motion becomes random? The answer lies at the heart ...