Astronomy

Everything You Need To Know About Exoplanets

Exoplanets are some of the most exciting things to study as a scientist, because they pose so many mind-blowing questions: are we close to discovering a second Earth? Do aliens exist? How the heck can it RAIN GLASS on another world?

Share the knowledge!

Key Facts In This Video

  1. The way we discovered the first planets outside our solar system was with the Doppler Technique. 00:25

  2. Actually trying to see a planet would be like standing on Hawaii and looking at flame flickering near a lighthouse in California. 02:26

  3. Every 30 minutes, Kepler takes a measurement of the brightnesses of 160,000 stars. 03:41

Share the knowledge!

Key Facts In This Video

  1. On HD 189773b, winds propel particles of silicate around the planet at up to 7,000 km/hr (4,350 mph). 01:02

  2. The planet HAT-P-7b orbits its star in the opposite direction of most planets. 02:16

  3. TrES-2b reflects only 1% of the light that hits it. 04:08

Share the knowledge!

Key Facts In This Video

  1. The first confirmed exoplanets were found orbiting a pulsar in 1992. 02:03

  2. Hot Jupiters are gas giants that orbit very close to their star. 04:30

  3. During a transit, a planet passes in front of its star, letting Earth astronomers detect a dip in the star's brightness. The amount of light blocked tells you the planet's size. 05:52

Written By Curiosity Staff August 19, 2016