Light Echoes Used to Study Protoplanetary Disks

Light Echoes Used to Study Protoplanetary Disks 04/26/2016 11:20 AM EDT This illustration shows a star surrounded by a protoplanetary disk. A new study uses data from NASA's Spitzer Space Telescope and four ground-based telescopes to determine the distance from a star to the inner rim of its surrounding protoplanetary disk. Researchers used a method called "photo-reverberation," also known as "light echoes. This e-mail update was generated automatically based on your subscriptions. Some updates may belong to more than one category, resulting in duplicate notices.   Questions? Contact Us STAY CONNECTED:     SUBSCRIBER SERVICES: Manage Preferences  |  Unsubscribe  |  Help This message has been sent by NASA Headquarters · Washington, DC 20546