Science Aug 25 Missing tape discovery solves 40-year lunar mystery Traces of the Apollo astronauts’ presence lingered long after they left.
Science Jun 27 ‘Oumuamua, the first known interstellar visitor, is just a comet Oumuamua is almost certainly a comet, albeit one fittingly alien from those we find orbiting the sun, according to a new study published Wednesday.
Science Mar 25 Primeval salt shakes up ideas on how the atmosphere got its oxygen Our planet may have gained breathable air in the geologic blink of an eye.