Forbidden Universe
Paranormal => Our Universe & Outerspace => Topic started by: AngelOfThyNight on April 27, 2016, 06:29:43 PM
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Light Echoes Used to Study Protoplanetary Disks
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.
Source: Light Echoes Used to Study Protoplanetary Disks (http://www.nasa.gov/image-feature/light-echoes-used-to-study-protoplanetary-disks)