Some amino acids can be built in two ways that mirror each other, like a pair of right and left hands. Life on Earth uses the ...

Bennu is a carbon-rich asteroid whose components have remained relatively unchanged since the solar system's early days. NASA’s OSIRIS-Rex mission captured samples from the surface of the asteroid and ...

As the Earth absorbs more energy from the Sun and reflects less back into space, much of the excess heat is being funnelled ...