With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system, and it's the only ... increasingly monitoring Earth from space. NASA alone has dozens of missions dedicated ...

From realistic NASA-based shuttles to fun lunar playsets ... If you'd prefer to leave our solar system behind and travel to a galaxy far far away, then we'd recommend taking a look at our guide ...

"I was thrilled to be named a Solar System Ambassador," said Johnston, a volunteer at Pisgah Astronomical Research Institute in Rosman. "I’ve been a NASA fan ... to kids in the Charlotte region ...

SPACE (KXAN) — A star flying through the night sky may be the fastest-moving solar system ... the system could be moving at least 1.2 million miles per hour, according to NASA.

NASA's Pleiades supercomputer simulations suggest the spiral shape is influenced by the Milky Way's gravity. This discovery could redefine our understanding of the solar system's boundaries and ...