Egypt’s King Mentuhotep II reunited his country’s upper and lower regions at the turn of the 20th century—B.C.E. Were the ...

Around 1,350 light years away from Earth is a star called TOI-2155. It’s a little bigger, heavier and hotter than the Sun, ...

A prototype cell partly capable of replicating itself has been created using 36 existing bacterial genes, but it's not really ...

From chemical building blocks, scientists have created synthetic cells that have most of the hallmarks of life.

Female mammals have long thought to be born with all the eggs they would ever have, but new research is challenging that consensus ...

Scientists built a synthetic cell that combines more lifelike properties than ever before — proof of concept that it’s possible to bring nonliving materials to life, or something close to it, in the ...

In the earliest stages of life, mammalian embryos start as a disorganized cluster of cells. As development progresses, these cells become organized into well-defined shapes and structures. This ...

Their bodies and their genomes were built in the lab from scratch, each molecule specified precisely. According to John Glass ...