"The Messenger spacecraft went into orbit around Mercury tonight, we can confirm that through the Doppler signals we've seen," said Eric Finnegan, the systems engineer. "It is extremely exciting ...

This famous effect — first seen in the orbit of the planet Mercury around the Sun — was the first evidence ... A supermassive black hole is lurking deep in the heart of our galaxy. Located about ...

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. Its oval-shaped orbit is highly ...

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.