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

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

The great planetary parade in February 2025 will see five bright planets in clear view and a special alignment of Mercury and ...

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

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Though the planets are always “aligned,” seeing more than four in the sky is more uncommon. February’s lineup is a chance to ...

Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye ...

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

Baker said that there are other astronomical events that may be more interesting than the parade of planets. Baker said Mars ...

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

NASA officials said what Juno spotted was 'the most powerful volcanic event ever recorded on the most volcanic world in our ...