“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto turns out to have as much complexity as Mars or Earth, so much so that I ...

It was the fastest spacecraft to leave Earth at the time ... yet the spacecraft crossed the diameter of Pluto just in 3 minutes. “Before New Horizons, everyone thought Pluto was going to ...

Pluto is too far away from Earth to be seen with the naked eye ... plains and maybe even "snow". By measuring the size of the shadows, we could estimate the height of these peaks at over 4,000m ...

Pluto was always in a tough spot when it came to being a planet. Just 1,477 miles across, it's only one-fifth the diameter of Earth. It did have five known moons: Charon, Nix, Hydra, Kerberos and ...

The controversy endures over Pluto's true status ... to get off the farm in Kansas where he spent his days working the earth. At just 23 years old, Tombaugh sent his drawings, unsolicited ...

Neither one is “big.” Earth’s moon is 2,160 miles in diameter. Some scientists believe Pluto should be upheld, but others suggest that Pluto, UB313 and other icy denizens of the Kuiper Belt ...

A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy. Using ...

If a person with a mass of 55kgs was to travel to Jupiter or Pluto, the effects of gravity would be very different from those on Earth. Gravity is the pull that a planet exerts towards its centre.