Webb Telescope Will Look for Signs of Life Way Out There

From a New York Times story by Carl Zimmer headlined “Webb Telescope Will Look for Signs of Life Way Out There”:

This month will mark a new chapter in the search for extraterrestrial life, when the most powerful space telescope yet built will start spying on planets that orbit other stars. Astronomers hope that the James Webb Space Telescope will reveal whether some of those planets harbor atmospheres that might support life.

Identifying an atmosphere in another solar system would be remarkable enough. But there is even a chance — albeit tiny — that one of these atmospheres will offer what is known as a biosignature: a signal of life itself.