In February, six planets will align in the night sky — Saturn, Mercury, Neptune, Venus, Uranus, Jupiter and Mars — and be mostly visible to the naked eye. We find out how to see and more about this ...

Nearly one third of known exoplanets are enormous gas giants, similar to Jupiter or Saturn. But whereas our solar system ...

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

The wannabe asteroid, announced on Jan. 2 as 2018 CN41, is actually a Tesla Roadster launched into space years ago by SpaceX ...