China burns more coal as drought cripples hydropower system
Hydroelectricity production fell 50% in the province of Sichuan, which provides 21% of China’s hydropower
Scientists say exoplanet 100 light years from Earth may be covered with deep ocean
The exoplanet orbits "a nearby visual-binary M dwarf" star
Earth was hit by another huge asteroid at the same time as the one that wiped out dinosaurs, vast crater suggests
The new crater, nicknamed Nadir, appears to have been caused by something that would be comparably destructive on its own
