The year 1999 in science and technology involved some significant events.
Aeronautics
February 27 – While trying to circumnavigate the world in a hot air balloon, Colin Prescot and Andy Elson set a new endurance record after being in their balloon for 233 hours and 55 minutes.
March 3–20 – Bertrand Piccard and Brian Jones successfully complete a non-stop circumnavigation of the world in a hot air balloon.
Astronomy and space exploration
Total solar eclipse of August 11, viewed from France
July 28 – Partial lunar eclipse, visible from Australia, eastern Asia, and western North America.
July 31 – NASA intentionally crashes the Lunar Prospector spacecraft into the Moon, thus ending its mission to detect frozen water on the Moon's surface.
August 11 – Total solar eclipse, visible from Europe, across the Middle East, and ending in India.
September 21 – David Bowie's Hours becomes the first complete music album by a major artist available to download over the Internet in advance of the physical release.[2]
First working 3-qubit NMR computer demonstrated at IBM's Almaden Research Center. First execution of Grover's algorithm.
August 17 – The 7.6 Mwİzmit earthquake shakes northwestern Turkey with a maximum Mercalli intensity of IX (Violent), leaving 17,118–17,127 dead and 43,953–50,000 injured.
History of science and technology
Boris Chertok publishes «Ракеты и люди» (Rockets and people), a history of the Soviet rocket program.