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The Mariner program was conducted by the American space agency NASA to explore other planets. Between 1962 and late 1973, NASA's Jet Propulsion Laboratory (JPL) designed and built 10 robotic interplanetary probes named Mariner to explore the inner Solar System – visiting the planets Venus, Mars and Mercury for the first time, and returning to Venus and Mars for additional close observations.
Space exploration is the use of astronomy and space technology to explore outer space. While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one of the main sources for space science.
Mariner 2, an American space probe to Venus, was the first robotic space probe to report successfully from a planetary encounter. The first successful spacecraft in the NASA Mariner program, it was a simplified version of the Block I spacecraft of the Ranger program and an exact copy of Mariner 1. The missions of the Mariner 1 and 2 spacecraft are sometimes known as the Mariner R missions. Original plans called for the probes to be launched on the Atlas-Centaur, but serious developmental problems with that vehicle forced a switch to the much smaller Agena B second stage. As such, the design of the Mariner R vehicles was greatly simplified. Far less instrumentation was carried than on the Soviet Venera probes of this period—for example, forgoing a TV camera—as the Atlas-Agena B had only half as much lift capacity as the Soviet 8K78 booster. The Mariner 2 spacecraft was launched from Cape Canaveral on August 27, 1962, and passed as close as 34,773 kilometers (21,607 mi) to Venus on December 14, 1962.
Mariner 1, built to conduct the first American planetary flyby of Venus, was the first spacecraft of NASA's interplanetary Mariner program. Developed by Jet Propulsion Laboratory, and originally planned to be a purpose-built probe launched summer 1962, Mariner 1's design was changed when the Centaur proved unavailable at that early date. Mariner 1, were then adapted from the lighter Ranger lunar spacecraft. Mariner 1 carried a suite of experiments to determine the temperature of Venus as well to measure magnetic fields and charged particles near the planet and in interplanetary space.
The Space Race was a 20th-century competition between two Cold War rivals, the United States and the Soviet Union, to achieve superior spaceflight capability. It had its origins in the ballistic missile-based nuclear arms race between the two nations following World War II and had its peak with the more particular Moon Race to land on the Moon between the US moonshot and Soviet moonshot programs. The technological advantage demonstrated by spaceflight achievement was seen as necessary for national security and became part of the symbolism and ideology of the time. The Space Race brought pioneering launches of artificial satellites, robotic space probes to the Moon, Venus, and Mars, and human spaceflight in low Earth orbit and ultimately to the Moon.
A trans-lunar injection (TLI) is a propulsive maneuver, which is used to send a spacecraft to the Moon. Typical lunar transfer trajectories approximate Hohmann transfers, although low-energy transfers have also been used in some cases, as with the Hiten probe. For short duration missions without significant perturbations from sources outside the Earth-Moon system, a fast Hohmann transfer is typically more practical.
The Luna programme, occasionally called Lunik by western media, was a series of robotic spacecraft missions sent to the Moon by the Soviet Union between 1959 and 1976. The programme accomplished many firsts in space exploration, including first flyby of the Moon, first impact of the Moon and first photos of the far side of the Moon. Each mission was designed as either an orbiter or lander. They also performed many experiments, studying the Moon's chemical composition, gravity, temperature, and radiation.
Surveyor 2 was to be the second lunar lander in the uncrewed American Surveyor program to explore the Moon. After launch on September 20, 1966 a mid-course correction failure resulted in the spacecraft losing control. Contact was lost with the spacecraft at 9:35 UTC, September 22.
A lander is a spacecraft that descends towards, then comes to rest on the surface of an astronomical body other than Earth. In contrast to an impact probe, which makes a hard landing that damages or destroys the probe upon reaching the surface, a lander makes a soft landing after which the probe remains functional.
The year 1959 in science and technology involved some significant events, listed below.
Gemini 11 was the ninth crewed spaceflight mission of NASA's Project Gemini, which flew from September 12 to 15, 1966. It was the 17th crewed American flight and the 25th spaceflight to that time. Astronauts Charles "Pete" Conrad Jr. and Richard F. Gordon Jr. performed the first direct-ascent rendezvous with an Agena Target Vehicle, docking with it 1 hour 34 minutes after launch; used the Agena rocket engine to achieve a record high-apogee Earth orbit; and created a small amount of artificial gravity by spinning the two spacecraft connected by a tether. Gordon also performed two extra-vehicular activities for a total of 2 hours 41 minutes.
The year 2004 in science and technology involved some significant events.
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The year 1962 in science and technology involved some significant events, listed below.
The SAMOS or SAMOS-E program was a relatively short-lived series of reconnaissance satellites for the United States in the early 1960s, also used as a cover for the initial development of the KH-7 GAMBIT system. Reconnaissance was performed with film cameras and television surveillance from polar low Earth orbits with film canister returns and transmittals over the United States. SAMOS was first launched in 1960 from Vandenberg Air Force Base.
Earth orbit rendezvous (EOR) is a method for conducting round trip human flights to the Moon, involving the use of space rendezvous to assemble, and possibly fuel, components of a translunar vehicle in low Earth orbit. It was considered and ultimately rejected in favor of lunar orbit rendezvous (LOR) for NASA's Apollo program of the 1960s and 1970s, mainly because LOR does not require a spacecraft big enough to both make the return trip from Earth orbit to splash down in the ocean, and a soft landing on the lunar surface. The two main proposed methodologies were: the in-space assembly of fueled spacecraft modules via docking techniques; and the in-space refueling of fully assembled spacecraft. This was the preferred approach adopted by the Soviet Union for achieving human lunar missions.
A Moon landing or lunar landing is the arrival of a spacecraft on the surface of the Moon, including both crewed and robotic missions. The first human-made object to touch the Moon was Luna 2 in 1959.
The physical exploration of the Moon began when Luna 2, a space probe launched by the Soviet Union, made a deliberate impact on the surface of the Moon on September 14, 1959. Prior to that the only available means of exploration had been observation from Earth. The invention of the optical telescope brought about the first leap in the quality of lunar observations. Galileo Galilei is generally credited as the first person to use a telescope for astronomical purposes; having made his own telescope in 1609, the mountains and craters on the lunar surface were among his first observations using it.
The Atlas-Agena was an American expendable launch system derived from the SM-65 Atlas missile. It was a member of the Atlas family of rockets, and was launched 109 times between 1960 and 1978. It was used to launch the first five Mariner uncrewed probes to the planets Venus and Mars, and the Ranger and Lunar Orbiter uncrewed probes to the Moon. The upper stage was also used as an uncrewed orbital target vehicle for the Gemini crewed spacecraft to practice rendezvous and docking. However, the launch vehicle family was originally developed for the Air Force and most of its launches were classified DoD payloads.
Advanced Gemini is a number of proposals that would have extended the Gemini program by the addition of various missions, including crewed low Earth orbit, circumlunar and lunar landing missions. Gemini was the second crewed spaceflight program operated by NASA, and consisted of a two-seat spacecraft capable of maneuvering in orbit, docking with uncrewed spacecraft such as Agena Target Vehicles, and allowing the crew to perform tethered extra-vehicular activities.
References
- ↑ "Eye witness accounts of the 1966 Leonid Storm". P. Jenniskens/NASA-ARC. Retrieved 2011-10-13.
- ↑ Gingerich, Owen (1967-01-03). "Probable New Satellite of Saturn" (discovery). IAU Circular . 1987. Retrieved 2011-12-28.
- ↑ Turner, Vivienne; McKay, G. M. (1989). "27. Burramyidae". In Walton, D.W.; Richardson, B. J. (eds.). Fauna of Australia, Volume 1B: Mammalia. Canberra: Australian Government Publishing Service. ISBN 0-644-06056-5.
- ↑ Le Pichon, Xavier (Summer 2013). "The "revolution" of Plate Tectonics in earth sciences and the relationship between science, reason and truth" (PDF). Euresis Journal. 5. Archived from the original (PDF) on 2014-03-08. Retrieved 2014-11-25.
- ↑ Fabius, Jaap (1966). "A probabilistic example of a nowhere analytic C ∞-function". Zeitschrift für Wahrscheinlichkeitstheorie und Verwandte Gebiete. 5 (2): 173–174. doi:10.1007/bf00536652. MR 0197656. S2CID 122126180.
- ↑ Crilly, Tony (2007). 50 Mathematical Ideas you really need to know. London: Quercus. p. 37. ISBN 978-1-84724-008-8.
- ↑ Mumford, David (1966), "Families of abelian varieties", Algebraic Groups and Discontinuous Subgroups (Proc. Sympos. Pure Math. 9, Boulder, Colo., 1965), Providence, R.I.: American Mathematical Society, pp. 347–351, MR 0206003
- ↑ Lander, L. J.; Parkin, T. R. (1966). "Counterexample to Euler's conjecture on sums of like powers". Bull. Amer. Math. Soc. 72 (6): 1079. doi: 10.1090/S0002-9904-1966-11654-3 .
- ↑ "Birth Control: The Morning-After Pill". Time . 1966-05-06. Archived from the original on April 8, 2008. Retrieved 2010-05-01.
- ↑ "Postcoital contraception". IPPF Medical Bulletin. 1 (4): 3. 1967. PMID 12254703.
- ↑ "Sir David Jack, who has died aged 87, was the scientific brain behind the rise of the pharmaceuticals company Glaxo". The Daily Telegraph. London. 2011-11-17. Archived from the original on 2011-11-25.
- ↑ Rett, A. (September 1966). "On an unusual brain atrophy syndrome in hyperammonemia in childhood". Wiener medizinische Wochenschrift (in German). 116 (37): 723–6. PMID 5300597.
- ↑ Kao, K. C.; Hockham, G. A. (July 1966). "Dielectric-fibre surface waveguides for optical frequencies". Proceedings of the Institution of Electrical Engineers . 113 (7): 1151–1158. doi:10.1049/piee.1966.0189.
- ↑ UK Patent No.1,197,183. Brocklehurst, Steven (2017-06-27). "The man who really invented the cash machine". BBC News. Retrieved 2021-05-16.
- ↑ Komissarov, Sergey (2002). Russia's Ekranoplans: the Caspian Sea Monster and other WiG craft. Hinkley: Midland Publishing. ISBN 978-1857801460.
- ↑ "Press release: The Nobel Prize in Chemistry 2022" (Press release). The Nobel Prize. 2022-10-05. Retrieved 2022-10-06.