Home > 2004 in science
The year 2004 in science and technology included many events, some of which are listed below.
1 Anthropology
2 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 90377 Sedna, a Pluto-like planetoidPlanetoid (meaning planet-like is an old synonym of asteroids. The term is again coming into use, but now meaning only the largest asteroids and trans-Neptunian objects like 1 Ceres, 50000 Quaoar or 90377 Sedna. See minor planets, asteroids, Kuiper Belt o which is the most distant individual object known to orbit the SunThe Sun (also called Sol is the star in our solar system. Planet Earth orbits the Sun. Other bodies that orbit the Sun include other planets, asteroids, meteoroids, comets and dust. Not all objects passing through the solar system have been orbitally capt.
- May 18May 18 is the 138th day of the year in the Gregorian Calendar (139th in leap years). There are 227 days remaining. Events 1593 Playwright Thomas Kyd's accusations of heresy lead to an arrest warrant for Christopher Marlowe. 1652 Rhode Island passes the fi - Scientists using the Chandra X-ray ObservatoryChandra X-ray Observatory is a satellite launched on STS-93 by NASA on July 23, 1999. It was named in honor of Indian physicist Subrahmanyan Chandrasekhar who is known for determining the mass limit for white dwarf stars to become neutron stars. Chandra" announced their http://chandra.harvard.edu/photo/2004/darkenergy/ findings that supports the notion that the expansion of the UniverseAlternate uses: See Universe (disambiguation In the first half of the 20th century, the word universe was used to mean the whole spacetime continuum in which we exist, together with all the energy and matter within it. Attempts to understand the universe is acceleratingAccelerating universe is a term for the idea that our universe is undergoing diveregeant rapid expansion. In the late 1990s, observations of supernovae (type Ia) produced the unexpected result that the expansion of the universe appears to be accelerating..
- June 8June 8 is the 159th day of the year in the Gregorian Calendar (160th in leap years), with 206 days remaining. Events 536 St. Silverius becomes Pope (probable date). 1776 American Revolutionary War: Battle of Trois-Rivieres American invaders are driven bac - Transit of VenusThis article is about the astronomical phenomenon. For other meanings, see Transit of Venus (disambiguation). 2004 transit of Venus The_transit_of_venus A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun an 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.
- November 20 - Launch of the Swift satellite to investigate gamma-ray bursts (GRB) and perform an X-ray all sky survey.
