Tuesday, 23 September 2014

Science and Technology this week: 15th Sep - 21st Sep 2014


ESA unveils spot for historic comet landing
A European spacecraft flying alongside a comet in deep space finally has a place to land after a 10-year journey through the solar system. The European Space Agency on 15th September unveiled the target landing site on Comet 67P/Churyumov–Gerasimenko for the Philae lander riding aboard the agency's Rosetta mission. Mission controllers picked a drop zone called "Site J" as the primary target from five potential landing sites shortlisted in late August. If all goes well, the lander will touch down on the comet on Nov. 11. ESA launched the Rosetta spacecraft and Philae into space in 2004. The probes traveled for 10 years, crossing 4 billion miles (6 billion km) of deep space before finally reaching their comet target.

Sea ice levels rise in Antarctic, falls in Arctic
The extent of sea ice in Antarctica is set to reach a record high, scientists said on 16th September, as they announced that Arctic sea ice appeared to have shrunk to its sixth lowest level ever. The National Ice and Snow Data Centre (NSIDC) said satellite data was expected to shortly confirm this. “Antarctic sea ice is poised to set a record maximum this year, now at 19.7 million sq km (7.6m sq m) and continuing to increase,” the centre said.

Figures released by the NSIDC in Boulder, Colorado, show that the so-called Arctic sea ice minimum — the point where the extent of sea ice there is at its lowest after the summer — is expected to be confirmed imminently.

At 5.09 m sq km, the extent of Arctic sea ice this year would be the sixth lowest on record, slightly worse than last year, though not as extreme as the record set in 2012 when it plunged to less than 3.5 million square kilometers.

2014 August recorded high temperature
2014, August was hottest, on record for global average temperatures over land and ocean surfaces, the U.S. National Oceanic and Atmospheric Administration said on 18th September. If the trend continues, 2014 could set records for planet-wide heat, raising fresh alarm at the pace of global warming and the burning of fossil fuels.

The month’s temperature was 1.35 degrees Fahrenheit above the 20th century average, the agency said in its monthly climate report. The period between January and August was also the third warmest on record

The National Oceanic and Atmospheric Administration (NOAA) is a scientific agency within the United States Department of Commerce focused on the conditions of the oceans and the atmosphere. NOAA warns of dangerous weather, charts seas and skies, guides the use and protection of ocean and coastal resources, and conducts research to improve understanding and stewardship of the environment. In addition to its civilian employees, 12,000 as of 2012, NOAA research and operations are supported by 300 uniformed service members who make up the NOAA Commissioned Officer Corps. The current Under Secretary of Commerce for Oceans and Atmosphere at the Department of Commerce and the agency's administrator is Kathryn D. Sullivan, who was nominated February 28, 2013, and confirmed March 6, 201


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