New species are being discovered faster than ever before — at a rate of more than 16,000 every year, suggests a new study.

Scientists around the world are confronting unexpected radio silence and puzzling measurements from interstellar object ...

The apocalyptic site, dubbed a 'doorway to hell', exists right here on Earth and has been burning since 1971 — only one person is known to have ever descended inside.

The Department of Homeland Security is expanding biometric screening at U.S. borders. Starting Friday, U.S. Customs and ...