How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

On Jan. 31, 1958, Explorer 1 became the first satellite launched by the United States. Its primary science instrument, a ...

This solar system and universe station is part of the Sun, Earth, Universe exhibition that opens Monday, May 5, on the fourth floor of the University of Wyoming’s Science Initiative Building. The ...

A violent solar eruption on May 31 launched a coronal mass ejection (CME) hurtling toward Earth, triggering a rare G4-level geomagnetic storm alert. Captured in real-time by U.S. Naval Research ...

Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion. We are slightly nearer to our star and receiving more solar energy than we ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...

Yeimy J. Rivera receives funding from NASA's Parker Solar Probe project through the SAO/SWEAP subcontract 975569. Tatiana Niembro receives funding from NASA's Parker Solar Probe project through the ...

New simulations suggest that up to four of the solar system's rocky planets, including Earth and a long-lost world, once orbited in mathematical harmony around the infant sun. When you purchase ...