As you step onto the track, the anticipation builds. The world of track and field offers a diverse array of events that challenge athletes’ speed, endurance, and technique. Whether you’re a seasoned ...

Avi Loeb, a Harvard astrophysicist, says that material recovered from the seafloor could be from an extraterrestrial spacecraft. His peers are skeptical. By Katrina Miller On Jan. 8, 2014, a fireball ...