NASA's Atmospheric Waves Experiment (AWE) discovered an unknown phenomenon from the International Space Station, 55 miles ...

Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major ...

If you have seen a bright light streak across the sky, you have likely seen a meteor. Meteors are rocks from space that hit Earth's atmosphere and are commonly referred to as falling stars or shooting ...

High-resolution isotope data show that a modern-like, oxygen-rich atmosphere was not established until 410 million years ago, supporting a 2-billion-year transitional oxygenation of Earth’s surface.