Asteroids Preserve Ancient Clues From the Birth of the Solar System
Long before Earth developed oceans, continents and life, the Solar System was a vastly different place. About 4.6 billion years...
Sun
Solar Storm Watch Issued as Powerful Eruptions Send Plasma Toward Earth
Space-weather forecasters are watching the Sun closely after powerful solar activity sent several coronal mass ejections toward Earth, raising the...
NASA’s “Contemplating the Sun” Highlights the Fascinating Science Behind Our Nearest Star
The Sun remains one of the most important objects in the sky, and NASA’s Astronomy Picture of the Day for...
The Sun Has Only About 22 Galactic Orbits Left—A Cosmic Journey That Puts Human History Into Perspective
Every year, Earth completes one revolution around the Sun, traveling at an astonishing speed of nearly 107,000 kilometers per hour...
