Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. Clyde Tombaugh didn't set out to discover Pluto when he sent his ...

If a person with a mass of 55kg 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.

However, these bodies became forever linked in orbit – thanks to gravity. This “kiss and capture” mechanism offers a fresh perspective on planetary formation, particularly about Pluto and ...

(Correction: An earlier version of this story misstated how far Pluto is from the sun. The correct number is 3.7 billion miles.) What was discovered in Flagstaff, Arizona, and killed off in Prague?

“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 ...

with a circular orbit around a mutual center of gravity. The fact Pluto's orbital axis is more or less perfectly aligned with Charon's highly suggests they were both spun out of the same rotating ...

This was an as-yet undiscovered planet whose gravity, Lowell believed ... dot of light that would soon be known to all the world as Pluto. My father worked for the Lowell Observatory for the ...

NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at the closest approach of that distant world in July 2015. Sailing onward, the probe carried out ...

Be spherical in shape (Pluto is round due to its gravity). Clear its orbit of other debris (Pluto fails this). Pluto shares its orbit with other objects in the Kuiper Belt and is not ...