Scientists believe that Earth’s core is a massive ... the structure could be the remnants of an ancient ocean floor that lies beneath the surface of our planet. Of course, scientists say it ...

While much remains unknown, it is intriguing that two ancient meteorite impacts, the 3.5-billion-year-old North Pole impact ...

What roils beneath Earth's surface may feel a world away, but the activity can help forge land masses that dictate ocean ...

"You could pull up Google Earth images of places like Utah, zoom out, and you’d see the similarities to Mars." ...

These findings are important because active volcanoes on Earth often create conditions that support life—by releasing heat ...