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.

2011 was declared the International Year of Forests and Chemistry by the United Nations.

[1][2] 26 June

26 November 2011: NASA launches its Curiosity rover (pictured), the largest Mars rover yet built.
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 .
3 February 2011: the Kepler space telescope discovers a planetary system of six planets orbiting the star Kepler-11 (artist's impression pictured).
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.
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 .
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).
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).
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 .
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.
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).
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.
4 November 2011: the MARS-500 isolation experiment (facility diagram shown) ends in Moscow , having simulated a 520-day human mission to Mars .
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. [ 230 ]
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 .
11 February 2011: Christian J. Lambertsen , the inventor of the SCUBA device, dies aged 93.
1 March 2011: John M. Lounge , a former NASA astronaut, dies aged 64.
5 April 2011: Baruch Samuel Blumberg , a Nobel Prize -winning American physician, dies aged 85.
30 May 2011: Rosalyn Sussman Yalow , a Nobel Prize-winning American physicist, dies aged 89.
23 July 2011: Robert Ettinger , the "father of cryonics ", dies aged 92.
14 September 2011: Rudolf Mössbauer , a Nobel Prize -winning German physicist, dies aged 82.
5 October 2011: Steve Jobs , an American technology entrepreneur and co-founder of Apple Inc. , dies aged 56.