Natural Sciences

Mathematical model calculates probability of shared ancestors for African Americans

A study from the lab of Stanford geneticist Noah Rosenberg indicates that two African Americans born in the early 1960s have a probability between 19% and 31% of sharing at least one common ancestor who was forcibly transported to the Western Hemisphere during the Transatlantic Slave Trade.

An illustration of a family tree

Jon Simon with the cavity array microscope

Light-based platform sets the stage for quantum supercomputers

Close up of an optical amplifier chip, similar to the one detailed in the new study, that is being developed in the lab of Stanford physicist Amir Safavi-Naeini. A red laser light shines from an optical fiber on the left to help with aligning the fiber to the chip.

New chip-sized optical amplifier can intensify light 100 times

Photo of Fang Liu

Fang Liu wins Scialog awards

Portrait of Barnabas Daru

Barnabas Daru receives International Biogeography Society award

‘To advance science, it’s important to blur the boundaries between the disciplines’

Portrait of Hunter Fraser

Neurodiversity could be an essential consequence of human evolution

Portrait of Todd Smith

Todd Smith, pioneer in the field of free-electron lasers, dies at 85

Portrait of Carolyn Bertozzi

Advance could expand immune therapy as a cancer treatment