THE internal rotation of a methyl group about its symmetry axis, despite the presence of the group in a great variety of organic molecules, has attracted little attention, probably because ...

All the matter we know of in our Universe is made of both fundamental and composite particles. However, only a few of the fundamental particles are observed to be stable and not to decay into other ...

Why don’t planets collide more often? How do planetary systems — like our solar system or multi-planet systems around other stars — organize themselves? Of all of the possible ways planets could orbit ...

A recent study reveals that certain configurations of artificial spheres and rings around binary stars could be stable. The work of Colin McInnes, published in the Monthly Notices of the Royal ...

An astrophysicist has found a new method for determining the long-term stability of planetary configurations that is up to 100,000 times faster than the previous approach. This breaks the ...