The Ultimate 2003 in science - American History Information Guide and Reference

February 1 - Space Shuttle Columbia disintegrates over Texas upon reentry killing all seven astronauts onboard.
February 11 - NASA's WMAP takes first detailed "baby picture" of the universe. The image reveals the universe is 13.7 billion years old (within one percent error) and provides evidence that supports the inflationary theory.
May 31 - Annular solar eclipse in Northern Scotland, Faroe Islands, Greenland, and Iceland, with partial eclipse covering much of Europe and Russia.
June 2 - Mars Express European Space Agency mission launched.
August 27 - Perigee of Mars
September 27 - Smart 1 is launched.
October 15 - The People's Republic of China launches Shenzhou 5, their first manned space mission.
October - November - The sun goes into a period of high activity, generating many large solar flares and coronal mass ejections.
November 23 - Total solar eclipse in Antarctica.
December 25 - Mars Express will entered orbit around Mars (planet)Mars . Its lander, Beagle 2 was to land on the surface but was lost (presumed crashed).
2dF Survey of Galaxy redshifts published.

Medicine

February 26 - A US businessman is diagnosed with the first known case of SARS in Hanoi, Vietnam by WHO doctor Carlo Urbani.

NOAA hurricane experts issue first experimental Eastern Pacific Hurricane Outlook

March - The world's first digital camera with an organic light-emitting diode (OLED) display is released by Kodak.
July 30 - The last old-style Volkswagen Beetle rolled of its production line in Puebla, Puebla, Mexico.
October 24 - Concorde makes its last flight, bringing the era of civilian supersonic travel to a close, at least for the time being.
Intel releases the Pentium M microprocessor.