Science Unbound on MSNOpinion

How archaeologists dismiss most ancient alien claims

Proponents of ancient alien theories point to megalithic structures, strange inscriptions, and myths of gods descending from ...
Modern Engineering Marvels on MSN

First alien signal may be a civilization’s final cry

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...