The Daily Northwestern

Dion-Kirschner: Lessons from scientists’ search for exoplanets

Hannah Dion-Kirschner, Columnist

March 30, 2017

On Feb. 22, NASA announced the discovery of seven Earth-sized exoplanets. Researchers believe all of the seven planets in the planetary system TRAPPIST-1 are rocky planets like Earth, rather than gaseous ones like Jupiter, Uranus...