Every nucleobase needed to build DNA and RNA - adenine, guanine, cytosine, thymine, and uracil - has been found in rock samples from the asteroid Ryugu, according to a study published in Nature ...

A rock measuring 900 meters is on a journey through our solar system, providing what is arguably one of the strongest pieces ...

A sample collected by the Hayabusa 2 spacecraft from the spinning top-like asteroid contained the nucleobases adenine, guanine, cytosine, thymine, and uracil.

A new study adds to a growing body of evidence that suggests asteroid impacts played a critical role in the emergence of life ...

This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at positions 1 and 3 (highlighted in blue). The remaining positions are occupied by ...

This image depicts the chemical structure of cytosine. It shows a hexagonal ring with nitrogen atoms at positions 1 and 3, and a primary amine group attached to carbon 4. The two remaining positions ...

Not all DNA looks like the familiar twisted ladder. Sometimes, parts of our genetic code fold into unusual shapes. One such structure, the G-quadruplex (G4), looks like a knot. These knots can play ...

Discover how CRISPR genome editing is revolutionizing medicine. Learn the science of Cas9, current clinical trials, and the future of gene editing.