Two astronauts of space shuttle Discovery have stepped out into space completing the first of the three spacewalks aimed at extending and rewiring the International Space Station.
Finally after their fourth unscheduled spacewalk, Discovery astronauts have successfully retracted a stubborn solar panel on the International Space Station.
Indian-American astronaut Sunita Williams is all set for an unscheduled fourth spacewalk along with other members of the Discovery crew on Monday to retract the P6 port solar array on the International Space Station.
Only seven other US women and a single Russian woman have participated in the 281 spacewalks taken since 1965.
41-year-old Sunita, who became the second woman of Indian descent to venture into space after Kalpan Chawla, said she was all "excited" to go out and check the planet.
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