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The first human in space and Earth orbit returned to Earth via a parachute after ejecting at an altitude of 7 kilometres (23,000 ft). [54] Gagarin was followed by additional Vostok flights, culminating with 81 orbits completed by Vostok 5 [ 55 ] and the launch of Valentina Tereshkova as the first woman cosmonaut in space aboard Vostok 6 .
The oldest human skeletal remains are the 40ky old Lake Mungo remains in New South Wales, but human ornaments discovered at Devil's Lair in Western Australia have been dated to 48 kya and artifacts at Madjedbebe in Northern Territory are dated to at least 50 kya, and to 62.1 ± 2.9 ka in one 2017 study.
"Program Scientist for the Ocean Biology and Biogeochemistry Program" "NASA Headquarters, in Washington, D.C." Del Castillo is the recipient of the Presidential Early Career Award for Scientists and Engineers (PECASE) award, the highest honor bestowed by the United States government on scientists and engineers beginning their independent careers.
Project Mercury was the first human spaceflight program of the United States, running from 1958 through 1963. An early highlight of the Space Race, its goal was to put a man into Earth orbit and return him safely, ideally before the Soviet Union.
Vostok 1 (Russian: Восток, lit. ' East ' or ' Orient ') was the first spaceflight of the Vostok programme and the first human orbital spaceflight in history. The Vostok 3KA space capsule was launched from Baikonur Cosmodrome on 12 April 1961, with Soviet cosmonaut Yuri Gagarin aboard, making him the first human to reach orbital velocity around the Earth and to complete a full orbit ...
A team of engineers suggests a new theory on how Egypt’s first pyramid was built — a water elevator used to float heavy stones through the middle of the structure. A team of engineers suggests ...
Gravitational waves were first detected on 14 September 2015. [244] The Human Genome Project was declared complete in 2003. [245] The CRISPR gene editing technique developed in 2012 allowed scientists to precisely and easily modify DNA and led to the development of new medicine. [246]
Early humans were social and initially scavenged, before becoming active hunters. The need to communicate and hunt prey efficiently in a new, fluctuating environment (where the locations of resources need to be memorized and told) may have driven the expansion of the brain from 2 to 0.8 Ma. Evolution of dark skin at about 1.2 Ma. [39]