GW Expert Available to Discuss Youth Climate Activism During Earth Week

This week, people across the globe are organizing events around sustainability, green living and climate change to mark the annual celebration of Earth Day. Often leading the charge is young people, who one faculty expert at the George Washington University…

ALMA Discovers Misaligned Rings in Planet-Forming Disk Around Triple Stars

Using the Atacama Large Millimeter/submillimeter Array (ALMA), two teams of astronomers have for the first time discovered a planet-forming disk with misaligned rings around a triple star system, called GW Orionis. The astronomers give two possible scenarios for the misalignment: either…

The Strange Orbits of ‘Tatooine’ Planetary Disks

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found striking orbital geometries in protoplanetary disks around binary stars. While disks orbiting the most compact binary star systems share very nearly the same plane, disks encircling wide binaries have orbital planes that are severely tilted. These systems can teach us about planet formation in complex environments.