NASA's Voyager 2 spacecraft flew by Uranus. This was the first time any spacecraft had ever visited Uranus. Its twin ...

This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

Throughout much of January and February, Venus, Mars, Jupiter, Saturn, Uranus and Neptune will be visible splayed out in a long arc across the heavens, with Venus, Mars, Jupiter and Saturn being ...