2007 in science
Encyclopedia
The year 2007 in science and technology
involved many significant events.
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Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...
involved many significant events.
Astronomy and space exploration
- January 12 - CometCometA comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...
C/2006 P1 (McNaught) reaches perihelion and becomes visible during daylight. - February 28 - The New HorizonsNew HorizonsNew Horizons is a NASA robotic spacecraft mission currently en route to the dwarf planet Pluto. It is expected to be the first spacecraft to fly by and study Pluto and its moons, Charon, Nix, Hydra and S/2011 P 1. Its estimated arrival date at the Pluto-Charon system is July 14th, 2015...
space probeSpace probeA robotic spacecraft is a spacecraft with no humans on board, that is usually under telerobotic control. A robotic spacecraft designed to make scientific research measurements is often called a space probe. Many space missions are more suited to telerobotic rather than crewed operation, due to...
makes a gravitational slingshotGravitational slingshotIn orbital mechanics and aerospace engineering, a gravitational slingshot, gravity assist maneuver, or swing-by is the use of the relative movement and gravity of a planet or other celestial body to alter the path and speed of a spacecraft, typically in order to save propellant, time, and expense...
against JupiterJupiterJupiter is the fifth planet from the Sun and the largest planet within the Solar System. It is a gas giant with mass one-thousandth that of the Sun but is two and a half times the mass of all the other planets in our Solar System combined. Jupiter is classified as a gas giant along with Saturn,...
to change its trajectory towards PlutoPlutoPluto, formal designation 134340 Pluto, is the second-most-massive known dwarf planet in the Solar System and the tenth-most-massive body observed directly orbiting the Sun...
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- March 3-March 4 - A total lunar eclipse occurs, visible in some parts of the AmericasAmericasThe Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...
and Asia, and all of Europe and Africa. - March 19 - A partial solar eclipseSolar eclipse of March 19, 2007A partial solar eclipse occurred on March 19, 2007. This partial eclipse was visible from India at sunrise, across Asia, and ending near sunset over northern Alaska.-References:* ** ** Photos:* * *...
occurs, visible in Asia. - April 10 - Spectroscopic analysis of HD 209458 bHD 209458 bHD 209458 b is an extrasolar planet that orbits the Solar analog star HD 209458 in the constellation Pegasus, some 150 light-years from Earth's solar system, with evidence of water vapor....
, an extrasolar planetExtrasolar planetAn extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars...
, provides the first evidence of atmospheric water vapor beyond the Solar SystemSolar SystemThe Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. The vast majority of the system's mass is in the Sun...
. - April 25 - Gliese 581 cGliese 581 cGliese 581 c or Gl 581 c is a planet orbiting the red dwarf star Gliese 581. It is the second planet discovered in the system and the third in order from the star. With a mass at least 5.6 times that of the Earth, it is classified as a super-Earth...
is discovered and identified as a potentially habitable Earth-like extrasolar planet in the constellation LibraLibra (constellation)Libra is a constellation of the zodiac. Its name is Latin for weighing scales, and its symbol is . It is fairly faint, with no first magnitude stars, and lies between Virgo to the west and Scorpius to the east.-Notable features:]...
. - June 5 - NASANASAThe National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...
's MESSENGERMESSENGERThe MErcury Surface, Space ENvironment, GEochemistry and Ranging space probe is a robotic NASA spacecraft in orbit around the planet Mercury. The spacecraft was launched aboard a Delta II rocket in August 2004 to study the chemical composition, geology, and magnetic field of Mercury...
spacecraft makes its second flyby of VenusVenusVenus is the second planet from the Sun, orbiting it every 224.7 Earth days. The planet is named after Venus, the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows...
en route to MercuryMercury (planet)Mercury is the innermost and smallest planet in the Solar System, orbiting the Sun once every 87.969 Earth days. The orbit of Mercury has the highest eccentricity of all the Solar System planets, and it has the smallest axial tilt. It completes three rotations about its axis for every two orbits...
. - August 28 - A total lunar eclipseLunar eclipseA lunar eclipse occurs when the Moon passes behind the Earth so that the Earth blocks the Sun's rays from striking the Moon. This can occur only when the Sun, Earth, and Moon are aligned exactly, or very closely so, with the Earth in the middle. Hence, a lunar eclipse can only occur the night of a...
occurs, visible in some parts of the AmericasAmericasThe Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...
and Asia, and all of AustralasiaAustralasiaAustralasia is a region of Oceania comprising Australia, New Zealand, the island of New Guinea, and neighbouring islands in the Pacific Ocean. The term was coined by Charles de Brosses in Histoire des navigations aux terres australes...
and the Pacific Ocean. - September 11 - A partial solar eclipseSolar eclipse of September 11, 2007A partial solar eclipse occurred on September 11, 2007. -References:* *-External links:* from Buenos Aires, Argentina by Jay Pasachoff...
occurs, visible in southern areas of South America. - September 27 - NASANASAThe National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...
's Dawn spacecraft is launched. - October 24 - Comet 17P/Holmes17P/HolmesComet Holmes is a periodic comet in our solar system, discovered by the British amateur astronomer Edwin Holmes on November 6, 1892...
suddenly brightens from 17 to about 2.8 magnitudeMagnitude (astronomy)Magnitude is the logarithmic measure of the brightness of an object, in astronomy, measured in a specific wavelength or passband, usually in optical or near-infrared wavelengths.-Background:...
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Computing
- April 27 - US researchers have simulated half a virtual mouse brain on a supercomputer.
Genetic engineering
- January 14 - ScientistScientistA scientist in a broad sense is one engaging in a systematic activity to acquire knowledge. In a more restricted sense, a scientist is an individual who uses the scientific method. The person may be an expert in one or more areas of science. This article focuses on the more restricted use of the word...
s at the Roslin Institute announce they have genetically engineeredGenetic engineeringGenetic engineering, also called genetic modification, is the direct human manipulation of an organism's genome using modern DNA technology. It involves the introduction of foreign DNA or synthetic genes into the organism of interest...
chickens which can lay eggsEgg (biology)An egg is an organic vessel in which an embryo first begins to develop. In most birds, reptiles, insects, molluscs, fish, and monotremes, an egg is the zygote, resulting from fertilization of the ovum, which is expelled from the body and permitted to develop outside the body until the developing...
with the ability to fight cancerCancerCancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...
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Philosophy of science
- Publication of Nassim Nicholas Taleb's book The Black Swan: the Impact of the Highly Improbable, discussing the "Black swan theoryBlack swan theoryThe black swan theory or theory of black swan events is a metaphor that encapsulates the concept that The event is a surprise and has a major impact...
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Awards
- Nobel PrizeNobel PrizeThe Nobel Prizes are annual international awards bestowed by Scandinavian committees in recognition of cultural and scientific advances. The will of the Swedish chemist Alfred Nobel, the inventor of dynamite, established the prizes in 1895...
- Nobel Prize in Physiology or MedicineNobel Prize in Physiology or MedicineThe Nobel Prize in Physiology or Medicine administered by the Nobel Foundation, is awarded once a year for outstanding discoveries in the field of life science and medicine. It is one of five Nobel Prizes established in 1895 by Swedish chemist Alfred Nobel, the inventor of dynamite, in his will...
: Mario CapecchiMario CapecchiMario Renato Capecchi is an Italian-born American molecular geneticist and a co-winner of the 2007 Nobel Prize in Physiology or Medicine for discovering a method for introducing homologous recombination in mice employing embryonic stem cells, with Martin Evans and Oliver Smithies...
, Oliver SmithiesOliver SmithiesOliver Smithies is a British-born American geneticist and Nobel laureate, credited with the invention of gel electrophoresis in 1955, and the simultaneous discovery, with Mario Capecchi and Martin Evans, of the technique of homologous recombination of transgenic DNA with genomic DNA, a much more...
and Martin EvansMartin EvansSir Martin John Evans FRS is a British scientist who, with Matthew Kaufman, was the first to culture mice embryonic stem cells and cultivate them in a laboratory in 1981... - Nobel Prize in PhysicsNobel Prize in PhysicsThe Nobel Prize in Physics is awarded once a year by the Royal Swedish Academy of Sciences. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895 and awarded since 1901; the others are the Nobel Prize in Chemistry, Nobel Prize in Literature, Nobel Peace Prize, and...
: Albert FertAlbert FertAlbert Fert is a French physicist and one of the discoverers of giant magnetoresistance which brought about a breakthrough in gigabyte hard disks...
and Peter GrünbergPeter GrünbergPeter Andreas Grünberg is a German physicist, and Nobel Prize in Physics laureate for his discovery with Albert Fert of giant magnetoresistance which brought about a breakthrough in gigabyte hard disk drives.-Biography:... - Nobel Prize in ChemistryNobel Prize in ChemistryThe Nobel Prize in Chemistry is awarded annually by the Royal Swedish Academy of Sciences to scientists in the various fields of chemistry. It is one of the five Nobel Prizes established by the will of Alfred Nobel in 1895, awarded for outstanding contributions in chemistry, physics, literature,...
: Gerhard ErtlGerhard ErtlGerhard Ertl is a German physicist and a Professor emeritus at the Department of Physical Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft in Berlin, Germany...
- Nobel Prize in Physiology or Medicine
- Abel Prize in MathematicsAbel PrizeThe Abel Prize is an international prize presented annually by the King of Norway to one or more outstanding mathematicians. The prize is named after Norwegian mathematician Niels Henrik Abel . It has often been described as the "mathematician's Nobel prize" and is among the most prestigious...
: S. R. S. Varadhan
Deaths
- February 20 - Frank Albert Cotton (b. 19301930 in scienceThe year 1930 in science and technology involved some significant events, listed below.-Astronomy and space exploration:* February 18 - Pluto is discovered by Clyde Tombaugh.* Bernhard Schmidt invents the Schmidt Camera.-Atmospheric chemistry:...
), chemistChemistA chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...
known for his research on transition metalTransition metalThe term transition metal has two possible meanings:*The IUPAC definition states that a transition metal is "an element whose atom has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell." Group 12 elements are not transition metals in this definition.*Some...
chemistry - July 7 - Dame Anne McLarenAnne McLarenThe Hon. Dame Anne Laura Dorinthea McLaren, DBE, FRS, FRCOG was the daughter of Henry McLaren, 2nd Baron Aberconway and Christabel McNaughten. She became a leading figure in developmental biology. Her work helped lead to human in vitro fertilisation...
(b. 19271927 in scienceThe year 1927 in science and technology involved some significant events, listed below.-Mathematics:* Publication of the 2nd edition of Principia Mathematica by Alfred North Whitehead and Bertrand Russell, one of the most important and seminal works in mathematical logic and philosophy.-Physics:*...
), developmental biologist. - July 23 - Ernst Otto FischerErnst Otto FischerErnst Otto Fischer was a German chemist who won the Nobel Prize for pioneering work in the area of organometallic chemistry.-Early life:...
(b. 19181918 in scienceThe year 1918 in science and technology involved some significant events, listed below.-Astronomy:* Kiyotsugu Hirayama identifies several groups of main belt asteroids, now known as Hirayama families....
), Nobel PrizeNobel PrizeThe Nobel Prizes are annual international awards bestowed by Scandinavian committees in recognition of cultural and scientific advances. The will of the Swedish chemist Alfred Nobel, the inventor of dynamite, established the prizes in 1895...
laureate for pioneering work in the area of organometallic chemistryOrganometallic chemistryOrganometallic chemistry is the study of chemical compounds containing bonds between carbon and a metal. Since many compounds without such bonds are chemically similar, an alternative may be compounds containing metal-element bonds of a largely covalent character...
. - October 26 - Arthur KornbergArthur KornbergArthur Kornberg was an American biochemist who won the Nobel Prize in Physiology or Medicine 1959 for his discovery of "the mechanisms in the biological synthesis of deoxyribonucleic acid " together with Dr. Severo Ochoa of New York University...
(b. 19181918 in scienceThe year 1918 in science and technology involved some significant events, listed below.-Astronomy:* Kiyotsugu Hirayama identifies several groups of main belt asteroids, now known as Hirayama families....
), Nobel PrizeNobel PrizeThe Nobel Prizes are annual international awards bestowed by Scandinavian committees in recognition of cultural and scientific advances. The will of the Swedish chemist Alfred Nobel, the inventor of dynamite, established the prizes in 1895...
laureate for his discovery of the mechanisms in the biological synthesis of deoxyribonucleic acidDNADeoxyribonucleic acid is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms . The DNA segments that carry this genetic information are called genes, but other DNA sequences have structural purposes, or are involved in...
. - October 30 - WashoeWashoe (chimpanzee)Washoe was a chimpanzee who was the first non-human to learn to communicate using American Sign Language, as part of a research experiment on animal language acquisition....
(b. c.1965), chimpanzeeChimpanzeeChimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:...