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First Artificial Satelite
First artifical Satelite was launched into space on October 4, !957
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Sputnik 2 Carried first animal into space
the first animal ever to enter spacw was laika, a terrier owned by the russian space program. After being in low earth orbit for about 15 hours than died in re-entry.
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TIROS 1 launched
Weather satellite TIROS 1 is launched to test experimental television techniques for a worldwide meteorological satellite information system. Weighing 270 pounds, the aluminum alloy and stainless steel spacecraft is 42 inches in diameter and 19 inches high and is covered by 9,200 solar cells, which serve to charge the onboard batteries. Magnetic tape recorders, one for each of two television cameras, store photographs while the satellite is ou http://www.greatachievements.org/?id=3642 -
Yuri Gagarin becomes the first human in space
On April 12, cosmonaut Yuri Gagarin, in Vostok I, becomes the first human in space. Launching from Baikonur Cosmodrome, he completes one orbit of Earth in a cabin that contains radios, instrumentation, life-support equipment, and an ejection seat. Three small portholes give him a view of space. At the end of his 108-minute ride, during which all flight controls are operated by ground crews, he parachutes to
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John Glenn is the first American to circle Earth
John Glenn becomes the first American to circle Earth, making three orbits in his Friendship 7 Mercury spacecraft. Glenn flies parts of the last two orbits manually because of an autopilot failure and during reentry leaves the normally jettisoned retro-rocket pack attached to his capsule because of a loose heat shield. Nonetheless, the flight is enormously successful. The public, more than celebrating the technological success, embraces http://www.greatachievements.org/?id=3642 -
NASA launches two Mars space probes
NASA launches two Mars space probes, Viking 1 on August 20 and Viking 2 on November 9, each consisting of an orbiter and a lander. The first probe lands on July 20, 1976, the second one on September 3. The Viking project’s primary mission ends on November 15, 11 days before Mars’s superior conjunction (its passage behind the Sun), although the two spacecraft continue to operate for several more years. The last transmission reaches Earth on Nove http://www.greatachievements.org/?id=3642
