The asteroid, with a diameter of about 950 feet will come close enough to Earth on Friday to warrant astronomers keeping a ...

In 2018, an astrophysicist introduced the Silurian Hypothesis, the idea that an advanced civilization may have existed on Earth before humans.

A massive, house-sized asteroid is streaking through space at a blistering 42,300 miles per hour, coming alarmingly close to Earth. Measuring between 49 to 111 feet in diameter, it is one of several ...