Adam Summers is an associate professor at the University of Washington’s Friday Harbor Labs.
Fossilized cell remnants in 3.4 billion-year-old bedrock are from primitive microbes.
Frog hoppers piercing plants with their mouthparts produce negative pressures exceeding a megapascal.
An Okinawa citrus species arose two million years ago when the Ryukyu archipelago disconnected from Asia.
Astronomers have detected a disk around a planet outside our Solar System for the first time.
