Wikipedia

2011 in science

The year 2011 involved many significant scientific events, including the first artificial organ transplant, the launch of China's first space station and the growth of the world population to seven billion. The year saw a total of 78 successful orbital spaceflights, as well as numerous advances in fields such as electronics, medicine, genetics, climatology and robotics.

List of years in science (table)
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26 November 2011: NASA launches its Curiosity rover (pictured), the largest Mars rover yet built.

2011 was declared the International Year of Forests and Chemistry by the United Nations.[1][2]

Events, discoveries and inventions

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January

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18 January 2011: scientists prove that sharks are functionally colorblind.
 
20 January 2011: researchers demonstrate a medical technique that renders human T-cells (pictured, right) resistant to HIV.

February

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3 February 2011: the Kepler space telescope discovers a planetary system of six planets orbiting the star Kepler-11 (artist's impression pictured).
  • 2 February – The Linac Coherent Light Source, an X-ray source a billion times brighter than previous sources, becomes operational at Stanford University. The device could potentially revolutionize 3D bioanalysis techniques, especially in the analysis of proteins and viruses.[40]
  • 3 February
    • A blood test to detect vCJD is developed by British scientists, who say it could identify healthy people who are carriers of the disease.[41][42]
    • Further data from the Kepler space telescope published in Nature reveals that the star Kepler-11, located 2,000 light years from Earth, has a planetary system including six planets, which range between two and four-and-a-half times the radius of Earth, and between two and thirteen times its mass. Five orbit the star closer than Mercury orbits the Sun, and all are likely to have atmospheres made of light gases, and to be too hot to support life. The data also includes details of more than 1,000 additional exoplanet candidates.[43][44]
  • 4 February – Scientists reveal a tiny artificial brain, derived from rat neurons, that exhibits 12 seconds of short-term memory.[45][46]
  • 7 February – Scientists at Oxford University successfully test a universal flu vaccine, which should work against all known strains of the illness.[47][48]
  • 9 February – Using 25 years of evidence from over 470,000 participants, researchers show that sleep deprivation and disrupted sleep patterns can have long-term, serious health implications.[49]
  • 10 February – Scientists identify the root molecular cause of a variety of illnesses brought on by advanced age, including waning energy, failure of the heart and other organs, and metabolic disorders such as diabetes.[50]
  • 11 February – Scientists show that stem cells delivered via a nasal spray lead to an improvement of motor functions in rats with Parkinson's disease-like symptoms.[51][52]
  • 15 February
  • 16 February – Researchers find a way of manipulating tiny swimming robots, just 1.3 millimetres long, using electric currents in water.[56][57]
  • 17 February
    • Scientists build the world's first anti-laser, capable of absorbing an incoming laser beam entirely.[58][59]
    • A hummingbird-like "Nano Air Vehicle" is demonstrated for the first time, in an attempt to secure a DARPA contract to create small surveillance aircraft.[60]
  • 20 February – Stanford University researchers create new stretchable solar cells that could power artificial electronic 'super skin', capable of detecting chemicals and biological molecules. The potential applications include clothing, robotics, prosthetic limbs and more.[61][62]
  • 21 February – New research indicates that bilingual speakers are better at multitasking, because they are better at editing out irrelevant information; this overturns previous assumptions of bilingualism causing confusion, especially in children.[63][64]
  • 22 February
  • 28 February

March

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18 March 2011: the MESSENGER probe (artist's rendering shown) becomes the first spacecraft to orbit the planet Mercury.
  • 1 March
    • UK researchers demonstrate an optical microscope with one of the highest resolutions yet achieved, capable of imaging objects as little as 50 nanometres across.[72][73]
    • Scientists have determined how to generate a backward-pulling force from a forward-propagating beam, effectively creating a form of "tractor beam".[74][75]
    • Swiss researchers discover a gene in wasps that allow them to reproduce asexually.[76]
  • 4 March
  • 5 March – The United States Air Force launches its robotic Boeing X-37 spaceplane on its second long-duration spaceflight; the spaceplane ultimately remains in orbit for 469 days.[80]
  • 8 March – The world's first tissue-engineered urethras are successfully used.[81][82]
  • 12 March – Surgeons in Houston, Texas, successfully implant the world's first continuous-flow artificial heart in a human patient. The turbine-based device is efficient and long-lived, and may herald the mass production of smaller and more durable alternatives to conventional artificial hearts.[83]
  • 14 March – Archeologists believe that they have found the lost city of Atlantis in mud swamps near Cadiz, Spain. They theorize that a tsunami struck the ancient settlement; a television special on the National Geographic Channel later investigates their findings.[84][85]
  • 16 March – Scientists report the first successful use of microcarriers to bring anti-cancer drugs to the targeted area in the liver of a living rabbit.[86]
  • 18 March – NASA's MESSENGER spacecraft successfully enters orbit around the planet Mercury – the first probe to do so.[87]
  • 20 March
    • A new way of delivering drugs to the brain, using the body's own exosomes, is developed by scientists, overcoming a major barrier to the delivery of potential new drugs for many neurological diseases, including Alzheimer's.[88][89]
    • Researchers announce the development of a three-dimensional nanostructure for battery cathodes that allows for dramatically faster charging, without sacrificing energy storage capacity. This could lead to cellphones that charge in seconds, and electric cars that charge in minutes.[90]
    • A new way of making battery electrodes, based on nanostructured metal foams, can be used to make a lithium-ion battery that recharge by 90% in under two minutes.[91][92]
    • Scientists demonstrate how SHANK3, a brain protein, may trigger autism-like behavior in mice by stopping effective communication between brain cells.[93][94]
  • 22 March – A 6 cm-by-6 cm chip holding nine quantum devices, among them four "quantum bits", is demonstrated at the American Physical Society meeting in Dallas, Texas. It is hoped that further scaling up to 10 qubits should be possible later this year.[95][96]
 
27 March 2011: American scientists successfully demonstrate a fire-suppression system which uses electric fields to extinguish open flames.
  • 24 March
    • A landmark study indicates that pioglitazone prevents the development of type 2 diabetes in 72% of pre-diabetic subject participants, the largest such decrease yet demonstrated by any intervention.[97][98]
    • The first sperm cells are grown in a lab.[99][100]
  • 27 March – Harvard University scientists demonstrate use of an electric field to extinguish an open flame more than 1 foot tall, a development they say could yield fire-suppression alternatives to water and chemical retardants.[101][102]
  • 31 March – Scientists announce the successful controlled entanglement of 14 quantum bits (qubits), realizing the largest quantum register yet produced—nearly double the previous record for the number of entangled quantum bits realized.[103][104]

April

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6 April 2011: scientists in Japan grow working retinas from mouse stem cells.
  • 6 April – Japanese scientists announce that they have created working retinas from mouse stem cells.[115][116]
  • 11 April – ZRTP, a cryptographic key-agreement Real-time Transport Protocol devised by Phil Zimmermann, is published.[117]
  • 12 April
  • 13 April
    • Cellphones may be contributing to a global decline in honeybee populations, according to researchers.[122][123]
    • American scientists discover that light can demonstrate strong magnetic effects when travelling through certain materials at certain intensities. This finding, which overturns a century-old scientific assumption that light's magnetic effects are too weak to be tangible, may lead to the development of solar panels capable of storing energy magnetically.[124]
  • 14 April
  • 15 April
    • The world's first human brain map is unveiled, providing an interactive research tool that will help scientists to understand how the brain works. The map is hoped to aid new discoveries in disease and treatments; one thousand anatomical sites in the brain can be searched, supported by more than 100 million data points that indicate the gene expression and biochemistry of each site.[128]
  • 16 April – Sci-Hub – a shadow library website for open access that provides free access to most paywalled research papers and books without regard to copyright – is launched.[129][130]
  • 17 April – Researchers have injected biodegradable nanofiber spheres carrying cells into wounds to grow tissue.[131]
  • 18 April
    • Scientists demonstrate mathematically that asymmetrical materials should be possible; such material would allow most light or sound waves through in one direction, while preventing them from doing so in the opposite direction; such materials would allow the construction of true one-way mirrors, soundproof rooms, or even quantum computers that use light to perform calculations.[132]
    • A new design for thin-film solar cells has been developed that requires significantly less silicon than standard models, and may be more efficient at capturing solar energy.[133]
  • 19 April – An international research team publishes a new method to produce belts of graphene, called nanoribbons. By using hydrogen, they have managed to transform single-walled carbon nanotubes into ribbons.[134]
  • 20 April – Scientists describe a Chinese spider they say is the biggest fossilised arachnid yet found; Nephila jurassica, as they have called their specimen, would have had a leg span of some 15 cm.[135][136]
 
21 April 2011: a modified anti-malaria gene is successfully introduced to a population of mosquitoes.

May

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12 May 2011: astronomers state that the exoplanet Gliese 581d (artist's impression pictured) could potentially support Earth-like life.
 
26 May 2011: American scientists successfully transmute human skin cells directly into neurons (pictured).

June

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1 June 2011: two new chemical elements, 114 and 116, are officially added to the periodic table.
 
12 June 2011: the Nabro Volcano erupts in Eritrea (ash plume pictured), despite having been considered extinct.
 
22 June 2011: Stanford University engineers develop nanowire electronics that can be attached to nearly any surface (gold nanowires pictured).
  • 22 June
    • A newly developed multiferroic composite of nickel, cobalt, manganese and tin can be either non-magnetic or highly magnetic, depending on its temperature, making it capable of converting heat into electricity. (PopSci) (Adv. Energy Mater.) 
    • The brains of people living in cities operate differently from those in rural areas, according to a brain-scanning study. (The Guardian) (Nature) 
    • Scientists demonstrate an acoustic "cloaking device" that makes objects invisible to sound waves; such acoustic cloaking was proposed theoretically in 2008, but has only this year been put into practice. (BBC) (Phys. Rev. Lett.) 
    • Stanford University researchers have developed a new method of attaching nanowire electronics to the surface of virtually any object, regardless of its shape or composition. The method could be used in making everything from wearable electronics and flexible computer displays to high-efficiency solar cells and ultrasensitive biosensors.(Nano Lett.) 
  • 23 June – Single-celled yeast has been observed to evolve into a multicellular organism, complete with division of labour between cells. This suggests that the evolutionary leap to multicellularity may be a surprisingly small hurdle.(New Scientist) (PNAS) 
  • 24 June
  • 25 June – Stanford researchers have developed a microphone that can be used at any depth in the ocean, even under crushing pressure, and is sensitive to a wide range of sounds, from a whisper in a library to an explosion of TNT. They modeled their device after the extraordinarily acute hearing of orcas. (J. Acoust. Soc. Am.) 

26 June

July

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7 July 2011: Swedish surgeons successfully carry out the world's first artificial organ transplant, giving a cancer patient a new, lab-grown trachea.
 
16 July 2011: NASA's Dawn spacecraft successfully enters orbit around the asteroid 4 Vesta (pictured).
 
21 July 2011: the final mission of the Space Shuttle program, STS-135, ends with the landing of Space Shuttle Atlantis (pictured) at Kennedy Space Center.

August

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10 August 2011: a new gene therapy successfully kills off leukemia lymphocytes (pictured) in three advanced patients.
 
19 August 2011: the American Office of Naval Research successfully tests a new class of conventional explosive, reportedly five times more powerful than existing explosives.

September

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2 September 2011: scientists create a working electric motor made from a single molecule (molecular-scale computer pictured).
 
14 September 2011: NASA publishes the design of its future heavy-lift rocket, the Space Launch System (concept art shown).

October

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12 October 2011: scientists reconstruct the genome of the Black Death which devastated Europe in the 14th century.
 
26 October 2011: the Boeing 787 Dreamliner, the first major airliner to significantly incorporate composite materials, completes its first commercial flight.
 
31 October 2011: the world population reaches seven billion, according to a United Nations estimate.
  • 28 October
    • British scientists report that a daily dose of aspirin can reduce the incidence of bowel cancer in people at high risk of the disease. (BBC) (The Lancet) 
    • Human-caused climate change is already a major factor in more frequent Mediterranean droughts, according to a new study, which shows that the magnitude and frequency of drying is too great to be explained by natural variability alone. (NOAA) (J. Clim.) 
    • NASA launches the NPOESS Preparatory Project – the first of its next generation of polar-orbiting satellites dedicated to gathering weather and climate data. (BBC) (NASA)
  • 29 October – CERN researchers attempt to repeat a recent experiment that apparently yielded faster-than-light neutrinos, using a more efficient system of measurement to validate their results. (The Guardian)
  • 31 October

November

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4 November 2011: the MARS-500 isolation experiment (facility diagram shown) ends in Moscow, having simulated a 520-day human mission to Mars.
  • 1 November
  • 2 November
    • China's uncrewed Shenzhou 8 spacecraft robotically docks with the orbiting Tiangong-1 space station module, marking China's first orbital docking, and a major milestone in its efforts to construct a full-scale space station by 2020. (BBC)
    • American researchers delay, and in some cases even eliminate, the onset of age-related symptoms such as wrinkles, muscle wasting and cataracts in mice. The development may have significant implications for the study and treatment of such symptoms in humans. (BBC) (Nature) 
    • Morocco is chosen as the first location for Desertec – a German-led, €400bn project to build a vast network of solar and windfarms across North Africa and the Middle East, with the aim of providing 15% of Europe's electricity supply by 2050. (The Guardian)
  • 4 November
    • Six men emerge from the 520-day MARS-500 isolation experiment, which aimed to simulate a human mission to Mars. The experiment, undertaken at a Moscow scientific institute, was intended to investigate the isolation of long-duration spaceflight and its effects on the human body and mind. (BBC)
    • A 20-year-old alternative solar cell design using dye-sensitized nanocrystal cells (DSC) could lead to cheap, printable cells, revolutionising solar power use worldwide, according to a new study. (KurzweilAI) (J. Am. Chem. Soc.) 
  • 5 November
    • An American doctor claims that brown eyes can safely and permanently be turned blue by using short laser pulses to destroy pigment in the iris. (BBC)
    • An official White House report states that "The U.S. government has no evidence that any life exists outside our planet, or that an extraterrestrial presence has contacted or engaged any member of the human race." It furthermore asserts that there is "no credible information to suggest that any evidence is being hidden from the public's eye." Although odds are "pretty high" that there may be life on other planets, "the odds of us making contact with any of them—especially any intelligent ones—are extremely small, given the distances involved." (UniverseToday) (White House)
  • 6 November – Dopamine-producing brain cells that are killed off by Parkinson's disease have been grown from stem cells and grafted into monkeys' brains by American researchers, in a major step towards new treatments for the condition. (The Guardian) (Nature) 
 
8 November 2011: Honda releases an enhanced version of its Asimo humanoid robot (earlier version pictured).
 
26 November 2011: NASA successfully launches its Mars Science Laboratory mission, which landed the Curiosity Mars rover (artist's impression pictured) on Mars in 2012.[160]

December

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1 December 2011: Oxford University scientists successfully induce quantum entanglement in two diamonds, the first time entanglement has been achieved in objects visible to the naked eye.
 
14 December 2011: scientists develop an imaging system which can capture images at one trillion frames per second, allowing it to image the motion of individual light waves.
 
21 December 2011: researchers report that non-native snakes have devastated populations of small mammals in the Florida Everglades.

Prizes

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Abel Prize

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Main article: Abel Prize

Nobel Prize

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Main articles: List of Nobel laureates in Physiology or Medicine, List of Nobel laureates in Physics, and List of Nobel laureates in Chemistry

Deaths

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11 February 2011: Christian J. Lambertsen, the inventor of the SCUBA device, dies aged 93.

January

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February

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March

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1 March 2011: John M. Lounge, a former NASA astronaut, dies aged 64.

April

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5 April 2011: Baruch Samuel Blumberg, a Nobel Prize-winning American physician, dies aged 85.

May

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30 May 2011: Rosalyn Sussman Yalow, a Nobel Prize-winning American physicist, dies aged 89.

June

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July

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23 July 2011: Robert Ettinger, the "father of cryonics", dies aged 92.

August

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September

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14 September 2011: Rudolf Mössbauer, a Nobel Prize-winning German physicist, dies aged 82.

October

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5 October 2011: Steve Jobs, an American technology entrepreneur and co-founder of Apple Inc., dies aged 56.

November

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December

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See also

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References

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  172. ^ Bruce Dan, Who Helped Link Toxic Shock and Tampons, Is Dead at 64. The New York Times, 10 September 2011. Retrieved 2011-11-03.
  173. ^ Dr. Richard Koch dies at 89; medical pioneer. Los Angeles Times, 8 October 2011. Retrieved 2011-11-03.
  174. ^ Dr. J. Willis Hurst, Cardiologist to Lyndon B. Johnson, Dies at 90
  175. ^ Morris Chafetz, 87, Dies; Altered View of Alcoholism
  176. ^ Dr. John F. Burke, Dies at 89; Created Synthetic Skin
  177. ^ "T. Franklin Williams, Early Geriatric Specialist, Dies at 90". The New York Times, 3 December 2011. Retrieved 2011-12-08.
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