LifeIs NASA doing enough to look for alien life? A new study says Hubble's successor could spot alien life on three new exoplanets. Should NASA be doing more? Or is it right to focus on other priorities? News
SpaceIdentity-crisis comet may really be closest asteroid to the sunObservations of a supposed comet that skirts close to the sun reveal it doesn't really act like one – so may be a different kind of space rock altogetherNews