Kepler observed KIC 8462852, along with about 150,000 other stars, from 2009 through 2013. During the first three years of that time span, KIC 8462852 got nearly 1 percent dimmer. The star's brightness dropped by a surprising 2 percent over the next six months, and stayed level for the final six months of the observation period.
A new study projects the rate of climate change, which has risen sharply in recent decades, will soar by the 2020s. This is consistent with several recent studies and has dangerous implications for extreme weather, sea level rise, and permafrost melt.
Aliens Next Door: Does Proxima b Host Life? Astronomers discovered the closest alien planet to Earth: Proxima b, a terrestrial world just over 4 light-years away. But it’s not clear if we’ll find life there.