Tuesday, July 22, 2008

Planets visited by Aircrafts

No human has yet set foot on any space body other than earth and the moon. But unmanned spacecrafts have taken photographs, made scientific readings, and gathered data either by flying past or landing. Pluto is scheduled for its first visit in 2015.

Astronomers have never seen this side of Mercury until now. The image was taken from a Nasa spacecraft 125 miles away

** Longest space walk **

The record for the longest ever space walk was broken from 10-11 march 2001, when mission specialist James voss and Susan Helms stepped outside space shuttle “discovery STS-102” to do construction work on the space station. Their EVA (extra vehicular activity) lasted 8 hours and 56 minutes.

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