Image: Liu Xu / Xinhua / AP
“Extraordinary claims require extraordinary evidence.”
– Carl Sagan (Cosmos, 1980)
This phrase is the standard that astronomers will be applying to a curious...
Image: ESO
Can we find alien technology? That is the ambitious goal of the Galileo Project, launched this week by Harvard astrophysicist Avi Loeb with...
Relative sizes of planets that are in a zone potentially
compatible with life: Kepler-22b, Kepler-69c, Kepler-62e, Kepler-62f
and Earth (named left to right;...