Smaller planets like Mercury have a tiny Hill sphere radius, since they can't exert a large gravitational pull. Any potential ...

Astronomers have upped the odds that the cosmic boulder will crash into the moon, which could potentially cause a cloud of ...

And unlike many other quality news outlets ... Of these factors, the study notes, location of the impact was the most critical. “Because the moon is orbiting the Earth at approximately 1km per second, ...

Over the last few years, the term "Goldilocks zone" has come to be widely used to describe the range of distances from a star ...