What We're Reading

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.

By using the power of evolution to solve practical problems, biochemists Frances H. Arnold, George P. Smith and Gregory P. Winter opened new avenues to chemical discovery.

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.

James P. Allison and Tasuku Honjo developing ways to unleash the immune system more effectively against cancers.

A new megascience endeavor will catalog and image each of the 200 or more types of cells from the 80 known organs and identify the genes that are active in these cells.

Twin probes from Hayabusa2 mission have sent back their first pictures from Ryugu’s surface.

In a multi-‘cat’ experiment, the textbook view of quantum theory, called the Copenhagen interpretation, seems to lead to contradictory pictures of reality, physicists claim.

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

Experimental spacecraft will fling a net and shoot a spear at targets in space.