This week, dual escalations in Yemen and Ukraine raises sharp questions about America’s strategic priorities and its ability ...

This quandary was named Fermi's paradox. "It's a numbers game," Jason Wright, the director of the extraterrestrial intelligence center at Pennsylvania State University, told AFP. The Milky Way is ...

Enrico Fermi asked fellow famous physicists including Edward Teller over lunch in 1950. This quandary was named Fermi's ...

"Where is everybody?": This question, about the lack of aliens in the vast universe, is called Fermi's paradox - Copyright NASA/AFP/File HO "Where is everybody ...

"Those of us looking for life in the universe generally don't think of the Fermi paradox or the great silence as such a big problem." ...