Harvard-Smithsonian Center for Astrophysics News


CO Ice in Protoplanetary Disks

Cosmic Mystery Solved: Missing Carbon Monoxide Was Hiding in the Ice

Astronomers frequently observe carbon monoxide (CO) in planetary nurseries. Because the compound is ultra-bright and extremely common in protoplanetary disks — regions of dust and…


Giant Planet Microlensing Event

A Giant Planet Microlensing Event

Over 5,000 exoplanets have been detected to date, with more than 90% of them found by using the transit or radial velocity techniques. Of the…











Gas Rich Debris Disk Around 49 Ceti

Finding Exoplanets in Debris Disks

Debris disks around main-sequence stars are tenuous belts of dust thought to be produced when asteroids or other planetesimals collide and fragment. They are common:…