How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Have you ever wondered why all the planets in our solar system orbit the Sun in roughly the same flat plane? This fascinating phenomenon isn’t a coincidence but a direct result of how our solar ...

A planet must orbit its host star – in our case the Sun – and must be mostly round and sufficiently large that its gravitational strength clears away any other objects of similar size near its ...

According to the National Weather Service, the summer solstice will occur on Friday at 10:42 p.m. Eastern time (it will be ...

The robotic Solar Orbiter spacecraft has obtained the first images ever taken of our sun's two poles as scientists seek a ...

For those in the northern latitudes, above cities like New York and London, the planet closest to the sun, Mercury, will be near the horizon and may be washed out by the glare of dawn. In these ...

Radar and gravity records from NASA’s Magellan orbiter show that Venus' surface is still shifting and is not geologically ...

The way comets behave in space may seem random, but new research suggests there’s more order behind the chaos than once ...

The innermost planet of our solar system is now well placed for observers.

On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this figure-of-eight pattern. But on other planets, with their own orbits and mean solar ...

It probably qualifies as a dwarf planet, the same classification as Pluto. Temporarily named 2017 OF201, it takes more than 24,000 years to travel around the sun just once along a highly ...