Despite Mercury being the closest planet to the Sun, the pictured craters are some of the coldest places in the solar system. Evidence suggests they are filled with frozen water, one of the key ...

Using data from NASA's MESSENGER spacecraft, scientists have determined that the solar system's tiniest planet, Mercury, hides a not-so-tiny secret: a 10-mile-thick mantle of diamond.

The four-planet lineup that began in January will conclude by mid-to-late February, as Saturn sinks increasingly lower in the sky each night after sunset, according to NASA. While Mercury will ...

During a June 2023 flyby of Mercury, BepiColombo encountered several characteristics of the planet's magnetic field. This field forms a protective magnetic bubble around Mercury and guards the ...

AIR AND SPACE A planet parade is happening next month: Here's why NASA says you might miss it Early risers may still catch a glimpse of a waning crescent moon, Mars and Saturn in the east ...

The planet Mercury could have a layer of diamonds up to 18 kilometers, or 11 miles, thick, tucked below is surface, scientists say. A layer of diamonds up to 18 kilometers (11 miles) thick could ...

Alongside a crescent moon, Mercury, Venus and Saturn will become visible to stargazers just before dawn on Friday morning. According to NASA, the planetary phenomenon will be clearest about 45 ...

In 2026, a European Space Agency (ESA)/Japan Aerospace Agency (JAXA) joint mission will fall into orbit around Mercury, the solar system's smallest planet. However, to do that, the spacecraft ...