CANADA: Mankind’s first close-up look at Pluto did not disappoint on Wednesday: the pictures showed ice mountains on Pluto about as high as the Rockies and chasms on its big moon Charon that appear six times deeper than the Grand Canyon.
Especially astonishing to scientists was the total absence of impact craters in a zoom-in shot of one otherwise rugged slice of Pluto. That suggests that Pluto is not the dead ice ball many people think, but is instead geologically active even now, its surface sculpted not by collisions with cosmic debris but by its internal heat, the scientific team reported.
Breathtaking in their clarity, the long-awaited images were unveiled in Laurel, Maryland, home to mission operations for Nasa’s New Horizons, the unmanned spacecraft that paid a history-making flyby visit to the dwarf planet on Tuesday after a journey of nine years and three billion miles (4.8 billion kilometres).
“I don’t think any one of us could have imagined that it was this good of a toy store,” principal scientist Alan Stern said at a news conference. He marvelled: “I think the whole system is amazing. … The Pluto system IS something wonderful.”
As a tribute to Pluto’s discoverer, Stern and his team named the bright heart-shaped area on the surface of Pluto the Tombaugh Reggio. American astronomer Clyde Tombaugh spied the frozen, faraway world on the edge of the solar system in 1930.
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