Feb. 28: Seven planets – Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune. (The last time all seven planets aligned ...

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

When I was a kid, there were nine planets. Now we know of thousands! But that includes exoplanets, alien worlds that orbit alien suns. Only eight planets call our solar system home. Or there might ...

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...

There are eight planets in the solar system, and each travels on its own path around the sun. But of these planets, which is nearest to the sun? Mercury is a strange little world. There are some ...

According to Sky & Telescope, in attempting to answer whether all eight planets could be visible in Earth’s sky, he came up with the 396 billion years figure but, crucially, he referred to the ...

This extraordinary celestial event will see the sky scattered with seven visible planets in what is known as a great planetary alignment. The eight planets in our solar system orbit the sun in ...

You may be familiar with the notorious Mercury retrograde, but Mercury is not the only planet to go through this stress-inducing phase. In 2025, eight planets will retrograde at various times ...

17 and 18. Timing: Dusk after sunset, but before 9 p.m. local time There are eight planets in our solar system and one dwarf planet (Pluto). Because we live on Earth, the most we could see is a ...