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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 ...
Early reentry-vehicle concepts visualized in shadowgraphs of high speed wind tunnel tests. The concept of the ablative heat shield was described as early as 1920 by Robert Goddard: "In the case of meteors, which enter the atmosphere with speeds as high as 30 miles (48 km) per second, the interior of the meteors remains cold, and the erosion is due, to a large extent, to chipping or cracking of ...
The primary goal was to have the RV change its path during reentry so that anti-ballistic missiles (ABMs) would not be able to track their movements rapidly enough for a successful interception. The first known example was the Alpha Draco tests of 1959, followed by the Boost Glide Reentry Vehicle (BGRV) test series, ASSET [16] and PRIME. [17]
A reentry capsule is the portion of a space capsule which returns to Earth following a spaceflight. The shape is determined partly by aerodynamics ; a capsule is aerodynamically stable falling blunt end first, which allows only the blunt end to require a heat shield for atmospheric entry .
Precision was needed in the calculation; small errors in timing or orientation could produce large errors in the landing point. Cooper drew lines on the capsule window to help him check his orientation before firing the re-entry rockets. "So I used my wrist watch for time," he later recalled, "my eyeballs out the window for attitude. Then I ...
Quotes about strength in hard times “Where there is no struggle, there is no strength.” —Oprah Winfrey “To strive with difficulties, and to conquer them, is the highest human felicity ...
Some high-density airspace regions could have as high as a 26% of being affected by an uncontrolled rocket body reentry. Risk of falling space junk impacting planes is growing, experts warn Skip ...
Komarov was ordered to re-orient the craft using the ion flow sensors on orbits 15 to 17. The ion sensors failed. Komarov did not have enough time to attempt a manual re-entry until orbit 19. Manual orientation relied on using the equipped Vzor periscope device, but to do this, Komarov had to be able to see the Sun.