Long before modern space exploration, scientists proposed astonishing ways to contact extraterrestrials—from giant burning ...

Ten Sound Off submissions on July 3 focused on America’s 250th anniversary. None should have been negative. We should be ...

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

It catches very low frequency radio waves made by lightning, solar storms and charged particles moving through Earth’s ...