Shared on Twitter on Monday, one of the clips shows the planet Mercury silhouetted in front of the sun’s atmosphere. It was recorded by the orbiter’s Extreme Ultraviolet Imager (EUI).

Without it, Thomas says "we would not exist" and "our solar system would not have formed as it has today." The Earth takes 365 days to orbit the sun. It moves through each zodiac sign for about a ...

Watch how Mercury travels across the face of the Sun in this newly-released video. The Solar Orbiter, which is owned by both ESA (European Space Agency) and NASA, catches Mercury traveling across the ...