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381298 01: Silhouetted Over Earth, The International Space Station (Iss) Is Seen In A Configuration October 15, 2000 Soon To Be Changed, Once The Approaching Sts-92 Crew Adds Its Important New Changes. If Oriented With Earth's Horizon On The Left, The Iss Elements, From The Left, Are Node 1 Or Unity, The Functional Cargo Block Or Zarya, The Service Module Or Zvezda And The Progress Supply Ship. In A Matter Of Days, The Crew Went On To Add The Z1 Truss Structure And A Third Pressurized Mating Adapter (Pma-3). (Photo By Getty Images)