Wiki spaceflight records
Valeri Polyakov, launched 8 January 1994 (Soyuz TM-18), stayed at Mir LD-4 for 437.7 days, during which he orbited the earth about 7,075 times and traveled 300,765,000 km, (186,887,000 miles) returned March 22, 1995 (Soyuz TM-20).
"...the primary feature of a space-based laboratory is its microgravity environment, which can usually be studied more cheaply with a vomit comet -- that is, an aircraft which flies in parabolic arcs."
"NASA must complete the ISS so it can be dropped into the ocean on schedule in finished form."
—Robert L. Park
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