Mercury will square Pluto retrograde, creating tension between your beliefs and how you communicate them. While Mercury ...

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...

Mercury may be the closest planet to the Sun, but it's long been overshadowed in scientific exploration. With only two missions ever reaching it - most recently NASA's MESSENGER - the planet remained ...

Mercury is one of the least visited planets in our solar system, but NASA’s MESSENGER mission changed that in 2011. It ...

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

"The extent of the tail is gargantuan, stretching up to 9 million kilometers [5.6 million miles] long," said MIT astronomer Marc Hon.

The planet is "crumbling to pieces," shedding the equivalent of Mount Everest’s mass every 30.5-hour orbit and will be ...

Mineral grains evaporated from the planetary surface, however ... which is between that of Mercury and the moon. More massive terrestrial planets like the Earth have a stronger gravitational ...

The planet orbits this star every 30.5 hours at a distance about 20 times closer than Mercury is to the sun. The planet's surface temperature is estimated at close to 3,000 degrees Fahrenheit ...

WD 1856+534b—a freezing world with a surface temperature of -125 degrees Fahrenheit—exists where planets are normally scoured ...

The planet orbits its host star in just 30.5 hours, losing a mass of material roughly equal to Mount Everest each time ...