Imagine Earth Shrinking to the Size of Pluto Consider the astronomical and geological implications of a drastically smaller Earth. Roberts, Gorsuch Join Liberal Justices in Supreme Court ...

A new simulation of Pluto's upper atmosphere shows that it extends so far from the planet that stray molecules may be deposited on its largest moon, Charon.The new model predicts that Pluto's ...

To help space enthusiasts conceptualize Pluto’s size, NASA created a graphic comparing Earth, Pluto and Charon, Pluto’s largest moon. For more Pluto coverage, check out 9 Facts About Pluto You ...

Since Pluto is so far from Earth, little was known about the dwarf planet's size or surface conditions until 2015, when NASA's New Horizons space probe made a close flyby of Pluto.

From Earth, about 5 billion miles away, the dwarf planet’s diameter was estimated to be 1,471 miles (2,368 km) by studying Pluto’s atmospheric haze as it passed in front of a distant star.

A planet-size object may be orbiting the sun in the icy reaches of the solar system beyond Pluto. Scientists at the University of Arizona's Lunar and Planetary Laboratory (LPL) have determined ...

A new study by NASA has found that markings on Pluto are like that of markings on Earth. Using a model like that of meteorologists, the study found evidence of snow and ice that up to now has only ...

A new study by NASA has found that markings on Pluto are like that of markings on Earth. Using a model like that of meteorologists, the study found evidence of snow and ice that up to now has only ...

A new study by NASA has found that markings on Pluto are like that of markings on Earth. Using a model like that of meteorologists, the study found evidence of snow and ice that up to now has only ...

A new study by NASA has found that markings on Pluto are like that of markings on Earth. Using a model like that of meteorologists, the study found evidence of snow and ice that up to now has only ...

A new study by NASA has found that markings on Pluto are like that of markings on Earth. Using a model like that of meteorologists, the study found evidence of snow and ice that up to now has only ...