A NASA mission to observe the activity of the solar wind has returned its first images of giant coronal mass ejections (CMEs) ...

Sunspot region 4114 has unleashed its most powerful solar flare yet — an X1.9 class that erupted late June 19, triggering shortwave radio blackouts across the Pacific Ocean, including parts of Hawaii.

Mars and Regulus will remain close to each other until June 22. Now they are not so close to each other, but they can still be seen together with the naked eye. The best time to observe is right after ...

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of ...

Our sun is classified as a G2 medium-sized star. We believe it’s about four billion, 600 million years old, halfway through its lifetime. It burns four million tons of hydrogen every second. The sun ...

Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...

Spurred by rising utility bills, St. Peter’s-San Pedro Episcopal Church in Salem, Mass., looked for alternatives. Its “Heaven ...

ESA’s Proba-3 mission has achieved a spacefaring marvel: two satellites flying in perfect formation to mimic total solar ...

Adventure seekers and travelers might argue that summer informally begins with the Memorial Day weekend. Then there's solar ...

West Paducah’s Shawnee Steam & Fossil Plant fired its first coal stack — generating electricity for thousands inside the ...

Just last week, for instance, the Hayden Planetarium at the American Museum of Natural History (AMNH) in New York City ...