Is the Best Time to Spot Mercury . In the early morning, Mercury will rise before the Sun and hang low in the east close to ...

NASA’s Messenger Spacecraft Detects a 10-Mile-Thick Layer of Diamonds on Mercury The innermost planet of our solar system, ...

Solar Orbiter pieced together 200 ultraviolet images to show our star’s million-degree atmosphere in all its glory.

On the flyby, the spacecraft passed within just 180 miles of Mercury’s surface ... space and away from the sun, then over its north pole before swinging over to see its north hemisphere in ...

The European Space Agency (ESA)'s Solar Orbiter mission has obtained a stunning high-res image of the sun's upper atmosphere.

April’s planetary parade has fewer planets. Only four will line up: Venus, Saturn, Mercury and Neptune. April's parade of ...