Today, March 21, 2025, the moon is 21 days old and is in the Waning Gibbous phase of its lunar cycle. It is 60% illuminated. Moon phase Date First Quarter March 6 Full Moon March 14 Third/Last ...

A Nobel Prize, of course. Such was the case for Hans Krebs, the biochemist who nabbed the award in 1953 for discovering the citric acid cycle, or “Krebs cycle”—the cellular pathway that converts ...