This video details a system of seven planets orbiting TRAPPIST-1, an ultra-cool dwarf star, a discovery of the Spitzer Space Telescope operated by NASA's Jet Propulsion Laboratory.
Scientists now say there are at least 2 trillion galaxies in the observable universe, more than 10 times previous estimates.
Astronomers have discovered evidence of a small, rocky planet orbiting our nearest star. Could Proxima b ever sustain life? The little planet orbits our sun’s nearest neighboring star, Proxima Centauri.
Stephen Colbert and Neil deGrasse Tyson riff, with scientific rigor and lots of humor, about the New Horizons findings, Pluto weirdness, and the demotion (or elevation?) of Pluto from planet to king of the Kuiper Belt.