2011 in science

Source: Wikipedia, the free encyclopedia.
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.

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.

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

Events, discoveries and inventions

January

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

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.[39]
  • 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.[40][41]
    • 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.[42][43]
  • 4 February – Scientists reveal a tiny artificial brain, derived from rat neurons, that exhibits 12 seconds of short-term memory.[44][45]
  • 7 February – Scientists at Oxford University successfully test a universal flu vaccine, which should work against all known strains of the illness.[46][47]
  • 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.[48]
  • 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.[49]
  • 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.[50][51]
  • 15 February
  • 16 February – Researchers find a way of manipulating tiny swimming robots, just 1.3 millimetres long, using electric currents in water.[55][56]
  • 17 February
    • Scientists build the world's first anti-laser, capable of absorbing an incoming laser beam entirely.[57][58]
    • 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.[59]
  • 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.[60][61]
  • 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.[62][63]
  • 22 February
  • 28 February

March

18 March 2011: the MESSENGER probe (artist's rendering shown) becomes the first spacecraft to orbit the planet Mercury.
27 March 2011: American scientists successfully demonstrate a fire-suppression system which uses electric fields to extinguish open flames.

April

6 April 2011: scientists in Japan grow working retinas from mouse stem cells.
21 April 2011: a modified anti-malaria gene is successfully introduced to a population of mosquitoes.

May

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).
  • 25 May
  • 26 May
  • 29 May – Human organs could be grown inside pigs for use in transplant operations, following research using stem cells. (The Telegraph) (EHGC 2001)
  • 31 May
    • A team of Chinese physicists successfully entangles eight photons simultaneously and observes them in action; the previous record was six. (arXiv)
    • Researchers have demonstrated the first true nanoscale waveguides for next generation on-chip optical communication systems; this holds potential for nanoscale photonic applications such as intra-chip optical communication, signal modulation, nanoscale lasers and bio-medical sensing.(Nat. Commun.)
    • A NASA-led research team unveils the most precise map ever produced of the carbon stored in Earth's tropical forests; the data is expected to provide a baseline for ongoing carbon monitoring and research. (PNAS)

June

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

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

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.
  • 19 August – The US Office of Naval Research says that it has successfully tested a new type of explosive material that can dramatically increase weapons' impacts. Missiles made from the high-density substance can explode with up to five times the energy of existing explosives. (BBC)
  • 22 August – American researchers prototype a basic form of bulletproof skin, based on genetically modified silkworm threads. (Police One)
  • 23 August
    • The natural world contains about 8.7 million species, according to a new estimate described by scientists as the most accurate ever. However, the vast majority of these species have not been identified – cataloguing them all could take more than 1,000 years. (BBC) (PLoS Biol.)
    • Computer simulations suggest that violent asteroid impacts flinging life from Earth to other planets is more likely than previously thought. (BBC) (ArXiv)
  • 24 August – Antibiotics' impact on gut bacteria is permanent—and so serious in its long-term consequences that medicine should consider whether to restrict the prescription of antibiotics to pregnant women and young children, according to a new study. (Wired) (Nature)
  • 25 August – A monkey sporting a ginger beard and matching fiery red tail, discovered in a threatened region of the Brazilian Amazon, is believed to be a species new to science. (The Guardian)
  • 26 August – An atomic clock at the UK's National Physical Laboratory (NPL) has the best long-term accuracy of any clock in the world, researchers from NPL and Penn State University have found. (BBC) (Metrologia)
  • 29 August – Japanese scientists announce an innovation in wind turbine technology, the wind lens, which could triple the energy output of wind turbines, making wind energy affectively cheaper than nuclear energy. (Mother Nature Network) Archived 2011-10-31 at the Wayback Machine (Kyushu University)
  • 31 August

September

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

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

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.[80]

December

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

Abel Prize

Nobel Prize

Deaths

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

January

February

March

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

April

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

May

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

June

July

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

August

September

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

October

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

November

December

See also

References

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