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Shijian-18 was a Chinese communications and technology demonstration satellite developed and launched by the China Academy of Space Technology on 2 July 2017. It was the maiden flight of the DHF-5 satellite bus, which is designed with 16-year lifespan. Shijian-18 carried 18 experiments on board involving communications and space telescopes.
The degradation of plastics in the ocean also leads to a rise in the level of toxics in the area. [21] The garbage patch was confirmed in mid-2017, and has been compared to the Great Pacific Garbage Patch's state in 2007, making the former ten years younger. The South Pacific garbage patch is not visible on satellites, and is not a landmass.
Research indicates that the patch is rapidly accumulating. [13] The patch is believed to have increased "10-fold each decade" since 1945. [15] The gyre contains approximately six pounds of plastic for every pound of plankton. [16] A similar patch of floating plastic debris is found in the Atlantic Ocean, called the North Atlantic garbage patch.
Debris on beach near Dar es Salaam, Tanzania Debris collected from beaches on Tern Island in the French Frigate Shoals over one month. Researchers classify debris as either land- or ocean-based; in 1991, the United Nations Joint Group of Experts on the Scientific Aspects of Marine Pollution estimated that up to 80% of the pollution was land-based, [5] with the remaining 20% originating from ...
Tongxin Jishu Shiyan (TJS, Chinese: 通信技术试验; pinyin: Tōngxìn Jìshù Shìyàn; lit. 'communication technology test') is a Chinese military satellite program operating in geostationary orbit (GEO).
First flight of Long March 5B. Some debris from the CZ-5B's core stage may have survived reentry and fell on villages in the Ivory Coast. [8] 29 May 2020 20:13 [10] Long March 11: F-09 Xichang: Successful XJS-G (Chuangxin 6-01) Low Earth: Shanghai Engineering Center for Microsatellites Earth observation technology XJS-H Low Earth
A garbage patch is a gyre of marine debris particles caused by the effects of ocean currents and increasing plastic pollution by human populations. These human-caused collections of plastic and other debris are responsible for ecosystem and environmental problems that affect marine life, contaminate oceans with toxic chemicals, and contribute ...
The goal was specifically to quantify the amount of large debris, including ghost nets in the patch. [80] Slat stated that the crew saw more debris than expected. [81] The project released an app called The Ocean Cleanup Survey App, which enables others to survey the ocean for plastic, and report their observations. [82]