2004 in science

The year 2004 in science and technology included many events, some of which are listed below.

Astronomy

January 19 - the Hubble Space Telescope Program received notification of the cancellation of all further HST on-orbit servicing
March 15 - Astronomers announce the discovery of Sedna, a Pluto-like planetoid which is the most distant individual object known to orbit the Sun.
May 18 - Scientists using the Chandra X-ray Observatory announced their Universe is accelerating.
June 8 - Transit of Venus across the Sun
September 13 - Astronomers from the European Southern Observatory (ESO) announce images that appear to show a planet orbiting a brown dwarf about 230 light years away. The system is believed to be only around 8 million years old.

July 30 - Marine biologists from the Monterey Bay Aquarium Research Institute announce in the journal Science the discovery of the genus Osedax, deep sea worms that feed on lipids in decaying whale carcusses.

January 14 - Physicists from Pennsylvania State University produce the first solid Bose-Einstein condensate January - A team from the JILA laboratory in Boulder, Colorado announce the creation of a fermionic condensate, the first such condensate made from atoms rather than molecules.
February 3 - Russian and American physicists produce results that indicate the discovery of elements 113 and 115 March 22 - A team from Australia, Russia and Greece announce a new material, made from a nano-foam of carbon that has the lowest density ever reported for a solid.
April 20 - NASA launches Gravity Probe B in an effort to test Einstein's general theory of relativity.
May 19 - A team of European scientists produces the first Tonks-Girardeau gas March 27 - NASA succeeds in a second attempt to fly its X-43A experimental airplane from the Hyper-X project, attaining speeds in excess of Mach 7, the fastest free flying air-breathing hypersonic flight.
April 2004 - Scientists from the University of California at Irvine announce the first high-speed transistor made from a carbon nanotube, operating at microwave frequencies.

January 3 - NASA's Spirit, the first of two Mars Exploration Rovers, lands successfully on Mars.
March 2 - NASA report that the area where their Mars probe Opportunity touched down shows unmistakeable signs of contact with water in the geological past.
March 2 - ESA's Rosetta mission launches, aiming to land on Comet Churyumov-Gerasimenko in 2014.
March 4- NASA's Spirit finds evidence of past contact with water in volcanic rocks on Mars.
April 1 - The Genesis probe closes and seals its particle collection instrument, and begins to return to Earth.
June 11 - Cassini-Huygens, the NASA/ESA mission to Saturn, makes a flyby of one of Saturn's small outer moons, Phoebe.
June 21 - SpaceShipOne, the first civilian space ship is launched in California, reaching an altitude of 100 km (62.5 miles), just passing the edge of space.
July 1 - The Cassini-Huygens space probe arrives at Saturn and begins its nominal 4 year mission after successfully reaching orbit.
September 8 - The Genesis spacecraft returns to Earth with captured solar wind particles, but crash-lands because of a failure to deploy any parachute.

February 12 - Arden Bement, acting director of the U.S.A's National Science Foundation.
August 26 - Neurobiologist Susan Hockfield is appointed as President of MIT.


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