Radar beams that are reflected from your car as you travel down a highway reveal your speed and direction. In a similar way, scientists using a telescope in Chile have discovered two planets orbiting a nearby reddish star by measuring the tiny motions they produce in their Sun as they orbit it.
Published on 5 years, 10 months ago
If you like Podbriefly.com, please consider donating to support the ongoing development.
Donate