This study is the first to demonstrate that certain tRNA introns influence gene expression. Scientists have discovered that ...

All forms of Earth life have specific chemicals in their makeup, such as amino acids and sugars. Scientists have known that ...

NASA's asteroid samples from Bennu hold not only building blocks for life, including amino acids and all five DNA and RNA nucleobases, but also the salty remains of an ancient water world, containing ...

NASA's groundbreaking mission to an asteroid ... and the five nucleobases for DNA and RNA. As asteroids crash into worlds across the galaxy, "they're essentially seeding these planets with the ...

Scientists have finally had a close look at the rubble collected by a spacecraft from the asteroid Bennu. Here's what they found inside and what it could tell us about the origin of life on Earth.

There are 20 amino acids that create the proteins required for life on our planet — and scientists have now found exactly 14 of them on an asteroid millions of miles away. The asteroid in question, ...

Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that such ...

NASA/James Tralie Asteroid Bennu not only held ... amino acids and the five nucleobases that form the building blocks of RNA and DNA. In other words, the sample contains a wealth of material ...

The building blocks for life, including salts, organic matter and amino acids have been found in samples returned to Earth from outer space.

Rock and dust samples from the Bennu asteroid contain molecules that are the "key to life" on Earth, NASA officials announced on Wednesday.