Using data from NASA’s $600 million Kepler telescope now orbiting the sun, a team lead by SETI’s Laurance Doyle detected the actual shadow of a planet as it crossed in front of its two suns – a scientific first. Before this discovery, astronomers could only infer that planets could circle two suns by looking at how the eclipses of those stars changed.

The sad fate of a demoted, briefly Earth-like exoplanetOf the 1235 possible planets discovered by NASA’s Kepler telescope, one of the most exciting was KOI 326.01, which appeared to be roughly Earth’s size and temperature. But it turns out the planet’s habitability is just a big clerical error.