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

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Now in its ninth year, the overwhelmingly expansive sci-fi survival sim No Man’s Sky is transforming yet again. Another ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

From January to March, the night sky will host a spectacular parade of planets featuring Venus, Mars, Jupiter, Saturn, Uranus ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

When astronomers found a large world farther out than Pluto, it became one of the final nails in the coffin of our ninth ...

A rare celestial event is captivating stargazers as six planets align in a striking display, says Professor Chandana ...

In 2025, a rare celestial event called Planet Parade will occur from January 21 to 29, where Venus, Mars, Jupiter, Saturn, ...