Fastest Planet in Solar System: Mercury is the fastest planet in the solar system because it orbits the Sun at an incredible speed of about 47 km per second, completing one full revolution in just 88 ...

This is the story of our cosmic neighborhood's front row. We explore the four rocky planets forged in the sun's heat: ...

NASA's MESSENGER mission has revealed that Mercury, the solar system's tiniest planet and the closest to the sun, hides a big secret. When you purchase through links on our site, we may earn an ...

Human bodies are exquisitely tuned to one world, and it is not a forgiving one. Strip away our technology and even Earth ...

The early years of our solar system were a period of unimaginable chaos and violence, a gravitational free-for-all where colliding planetary embryos competed for survival. In this tumultuous ...

Meteorites found in the Sahara Desert might be pieces of Mercury that broke off as the result of a collision when the Solar System was still forming. The meteorites had many parallels to the surface ...

KINGSPORT, Tenn. (WJHL) —This week, the night sky will provide the opportunity to view up to seven planets in our solar system. Mercury, Venus, Mars, Jupiter and Saturn will be visible to the naked ...

A new study disputes the prevailing hypothesis on why Mercury has a big core relative to its mantle (the layer between a planet’s core and crust). For decades, scientists argued that hit-and-run ...

"It is a world of extremes and contradictions, so I dubbed it the ‘Problem Child of the Solar System’ in the past." When you purchase through links on our site, we may earn an affiliate commission.