Geologists have uncovered ancient rocks in Greenland bearing the oldest remnants of Earth’s magnetic field — potentially extending its age by 200 million years. “That’s important because that’s the time when we think life was emerging,” Benjamin Weiss says.

Via @mitsigmakappa on Instagram: “In honor of Earth Day we met up with members of the Northeastern Chapter to help keep our community clean and take care of our planet.”

Using tiny, engineered livers derived from cells from human donors, researchers found that more than 300 liver genes are under circadian control. These circadian variations affect how much of a drug is available and how effectively the body can break it down.

Via @mit.health on Instagram: “Happy Patient Experience Week! We are grateful for and inspired by the entire MIT Health staff for their tireless work on the front lines and behind the scenes and their commitment to excellence in patient care.”

Engineers developed a chip that can safeguard user data while enabling efficient computing by power-hungry AI models on a smartphone. “It is important to design with security in mind from the ground up,” Maitreyi Ashok says.

Comprising four floors and 150,000 square feet next door to MIT’s campus, the new Engine Accelerator offers startups specialized lab equipment, advanced machining, fabrication facilities, office space, and a range of startup support services.