Streams of stars — relics of dwarf galaxies ripped apart by gravity — hold clues about the Milky Way's history, mass and perhaps its unseen dark matter.
Arthur Ashkin was honored for his invention of optical tweezers, and Gerard Mourou and Donna Strickland won for the invention of chirped pulse amplification, a technique for greatly increasing the power of laser pulses.
Workshops that fuse traditional learning with Silicon Valley–inspired “hack sessions” are giving scientists a new venue to build community and sharpen their skills.
The governing body of the American Association for the Advancement of Science voted to enact a policy under which an elected AAAS Fellow’s lifetime honor can be revoked for scientific misconduct or serious breaches of professional ethics. The new policy will go into effect on October 15, 2018