Samples contain all five nucleobases of DNA and RNA, supporting theory that asteroids may have seeded Earth with life's ...

Asteroids, small airless bodies within the inner solar system, are theorized to have contributed water and chemical building ...

Japanese scientists detected all five nucleobases — building blocks of DNA and RNA — in samples returned from asteroid Bennu ...

The building blocks for organic matter have been discovered on the asteroid Bennu, as deatiled in a new study in the journal ...

Samples of Bennu were brought back to Earth by NASA’s OSIRIS-REx spacecraft in 2023. Now, a pair of newly published papers ...

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

Uracil is often compared to thymine (T), which is the nucleobase that takes its place in DNA. Both uracil and thymine pair with adenine, but they differ in their chemical structure. Thymine has an ...

Analyzing a sample from an asteroid named Bennu reveals the chemicals necessary to form DNA and RNA.

The decoding of information in a cell's DNA into proteins begins with a complex interaction of nucleic acids. Learn how this step inside the nucleus leads to protein synthesis in the cytoplasm.

Scientists detected all five nucleobases -- building blocks of DNA and RNA -- in samples returned from asteroid Bennu by NASA's OSIRIS-REx mission.

In addition to the five nitrogenous bases—adenine, guanine, cytosine, thymine and uracil—required for building DNA and RNA, the researchers also found xanthine, hypoxanthine, and nicotinic ...