In the beginning, there was moosh. At the dawn of the Solar System, young Earth was little more than a squishy ball of half-molten rock. Somehow, over hundreds of millions of years, parts of that ...

NEW YORK — Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last ...

Dutch astronomer Jan Oort, born April 28, 1900, studied physics and astronomy and went on to a long career at Leiden University. Oort was a pioneer in 20th-century astronomy, revolutionizing our ...

This illustration shows the current positions of the Voyager missions with relation to the Sun. Currently considered outside the solar system, the spacecrafts will nonetheless take close to 300 years ...

A team of scientists accidentally visualized a hidden spiral in the Oort Cloud, and it might change everything we know about the solar system. A routine planetarium show at New York’s Hayden ...

(CNN) — An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a ...