Have you ever wondered why all the planets in our solar system orbit in the same plane? This fascinating characteristic of planetary orbits has intrigued astronomers for centuries. When we observe the ...

Mercury's orbit. Mercury speeds around the sun every 88 Earth days, traveling through space at nearly 112,000 mph (180,000 km/h), faster than any other planet.

Orbit around the Sun: Because Mercury is so close to the Sun, it has the smallest orbit of all the planets. Mercury’s year (the time it takes to orbit the Sun one time) is 88 Earth days long.

One of the simulations found that if a flyby occurred tomorrow and pulled Neptune out of its orbit just by 0.1%, there could be catastrophic consequences for Mercury and Venus.

Reaching Mercury is such a challenge because “the gravitational pull of the Sun is very strong near Mercury, which makes it difficult for spacecraft to slow down enough to enter orbit around the ...

For folks in the United States, July evenings mean 4th of July fireworks. While you're waiting for the show, be sure to watch ...

It will go into orbit around Mercury in 2026, about a year after its original arrival time. The delay was prompted by efforts to overcome problems with the spacecraft’s thrusters.