1997 in science

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The year 1997 in science and technology involved many significant events, listed below.

Astronomy and space exploration

January 17 - Explosion of a Delta II rocket carrying a military GPS payload shortly after liftoff from Cape Canaveral.
February 13 - Tune-up and repair work on the Hubble Space Telescope is started by astronauts from the Space Shuttle Discovery.
July 4 - Mars Pathfinder lands on the surface of Mars
August 25 - Launch of Explorer 71 of the Explorer program of spacecraft
October 30 - First successful test flight of the ESA's Ariane 5 expendable launch system

February 22 - In Roslin, Scotland, scientists announce that an adult sheep named Dolly had been successfully cloned and was born in July 1996
March 4 - United States President Bill Clinton bars federal funding for any research on human cloning
April 25 - Scientists announce that Human artificial chromosomes have been created.
July 10 - In London, scientists report their DNA analysis findings from a Neandertal skeleton which support the out of Africa theory of human evolution placing an "African Eve" at 100,000 to 200,000 years ago
November 19 - In Carlisle, Iowa, Bobbi McCaughey gives birth to septuplets in the second known case where all seven babies were born alive

May 11 - IBM's Deep Blue defeats Garry Kasparov, the first time a computer defeated a chess grand master in a match. Deep Blue had defeated Kasparov before, but had never won a match against him.

October 15 - The first supersonic land speed record is set by the ThrustSSC team from the United Kingdom

^ Waldman, Thomas A. (2003). "Immunotherapy: past, present and future" (PDF). Nature Medicine 9: 269–277.

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