Greg Tietjen, chief executive officer of Revalia Bio, lives life like a jazz musician, riffing off opportunities that bridge the many facets of his existence. Tietjen ...

Since 2022, a rumor has circulated online that a growing number of high-profile scientists, purportedly with access to national-security secrets due to their alleged involvement in organizations such ...

The Ediacara Biota are some of the strangest fossils ever found—soft-bodied organisms preserved in remarkable detail where preservation shouldn’t be possible. Scientists now think their survival in ...

Much work remains to be done, the scientists said. We don't know exactly how fast the engineered dust would cycle out of Mars' atmosphere, for example. Mars does have water and clouds, and, as the ...