When looking at our solar system, the planets going around the sun seem to be set up in a pretty organized fashion. They are ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Stargazers will be treated to a dazzling six- and seven-planet ... position. Feb. 28: Seven planets – Mercury, Venus, Mars, ...

Spotting one or two of the planets in our solar system is well worth a good skywatch, but seeing (almost) all of them in a ...

one which can offer superb views of the other bodies in the solar system. But which one to choose? We've got you covered with our guide to the best telescopes for seeing planets. Now's a great ...

On Feb. 24, from west to east, you can see Mercury, Saturn, Neptune, Venus, Uranus, Jupiter and Mars, all spanning 117.5°, ...

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative ... in the earliest days of our cosmic neighborhood.

"Our Sun (Sol) is marked by a black hexagon, and its orbital path is indicated by a grey solid line (top row only). Alpha Centauri's location and path are shown by a yellow star and a solid blue line ...

Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star. This technique can ...