This is the fourth comet Gröller has discovered, but given its extraordinary distance, it was the most exciting find, he says ...

Uranus has 27 known moons, which are named after characters from the works of William Shakespeare and Alexander Pope. Uranus takes approximately 84 Earth years to complete one orbit around the Sun.

Let’s get this out of the way—any scientist studying Uranus will tell you that they’re tired of the planet being the butt of ...

The objects around the ringed planet are tiny, but some of them may have formed relatively recently in the solar system’s ...

Uranus radiates more energy than it gets from the sun, two new studies find — just as Jupiter, Saturn and Neptune do.

This happens because the planets in our solar system essentially orbit the sun along the same line across a ... high-powered ...

On Feb. 28, seven planets—Mars, Jupiter, Uranus, Venus, Neptune, Mercury, and Saturn—will all grace the early evening sky.

Seven planets currently form a rare "planet parade" in February's evening sky, with three easy to see with the naked eye, and ...

Experts say open areas away from urban light pollution may offer the best possibilities for viewing the seven-planet alignment.

Seven planets are on display in the night sky at the end of February, but some will be harder to spot than others. Here’s ...

In the 1840s, French astronomer Urbain Le Verrier noticed the outermost planet of our solar system at the time, Uranus, wobbled a bit in its orbit. He reasoned that there must be another planet ...