Missing planets? That literally happens all the time IRL. Here's why the Star Wars trope of incomplete star maps and missing ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

A rare celestial event where seven planets align is visible in the UK skies. Discover how, when, and where you can observe ...

A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets, a new study suggests. The ...

A few decades ago, the Solar System had nine planets, but in 2006 the International ... ensuring you stay informed with the most accurate and timely information. Follow us to stay ahead with ...

However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System. The same year that Pluto was ignominiously ...

She mapped our solar system's "alternate fate" had it housed an extra planet between Mars and Jupiter instead of the existing asteroid belt. They developed a 3D model that simulates how the solar ...

A planet parade is when several of our solar system's planets are visible in the night sky at the same time. There will be six planets visible this time around, including Venus, Mars, Jupiter ...