Off the wire
• 17-member team watch cauldron flame at Universiade  • Sri Lanka's main opposition confident of polls victory despite defection  • Sri Lankan opposition members join ruling party for polls  • Warring parties breach UN-brokered truce in Yemen  • 1st LD Writethru-China Focus: Sino-UK remote sensing satellite constellation launched  • Roundup: Greek parliament authorizes gov't to negotiate debt deal proposal  • Urgent: Eurogroup says receiving assessment of Greek bailout proposal  • Vietnamese player reaches first Wimbledon boys' doubles semis  • 2017 Winter Universiade adds three new sports  • Clearer picture on possible cause of MH17 crash: Malaysian PM  
You are here: 　 Home

Pluto shows first sign of geology to approaching New Horizons

Xinhua, July 11, 2015 Adjust font size:

As the latest image from the New Horizons spacecraft appeared on Friday, scientists are just starting to see Pluto' s geology.

Mission scientists received the the newest black and white image in the morning on Friday from Long Range Reconnaissance Imager (LORRI) aboard New Horizons. At this range, Pluto is beginning to reveal the first signs of discrete geologic features, NASA said in a statement.

From the latest portrait, which was taken on Thursday from 5.4 million kilometers away, with a resolution of 27 kilometers per pixel, scientists are able to identify distant surface formations, including a polygonal complex band of terrain stretching east-northeast across the planet, approximately 1,000 miles long, and an immense dark band near the south pole that' s now being called the "whale".

"We' re close enough now that we' re just starting to see Pluto' s geology," said New Horizons program scientist Curt Niebur, "It' s a unique transition region with a lot of dynamic processes interacting, which makes it of particular scientific interest."

There will no doubt be many similar moments to come. New images and data are being gathered each day as New Horizons speeds closer to a flyby of Pluto next week, following a journey of 3 billion miles.

Pluto's closest approach is scheduled for next Tuesday, when New Horizons will pass within 10,000 km of the dwarf planet's surface, travelling at a speed of 43,000 km per hour.

After a voyage of nine years, New Horizons is almost 4.8 billion km away, where radio signals, even traveling at light speed, need 4.5 hours to reach Earth. Round trip communication between the spacecraft and its operators requires about nine hours.

The piano-sized probe will perform the first close range study of the distant, icy world and its five attendant moons before continuing its journey deeper into the Kuiper Belt to examine one or two of the ancient, icy small worlds in that vast region, which is at least 1.6 billion km beyond Pluto. Enditem