On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. Shortly ...

In a universe teeming with mysteries, a Harvard scientist is once again pushing humanity to confront one of the most profound questions of our time: are we alone, and if not, are we prepared for what ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" ...

Discover showtimes, read reviews, watch trailers, find streaming options, and see where to watch Galileo Smith Visits the Solar System (1997). Explore cast details and learn more on Moviefone.

Previous research suggests that small rocky bodies called protoplanets formed throughout the solar system, but those found beyond the asteroid belt between Mars and Jupiter came together a bit ...