Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

Yet despite the drumbeat of evidence, we still know of just one planet in the cosmos with life — the one you’re standing on.

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

Whether a galactic environment has the right conditions for habitable planets to form could depend on how the black hole in ...