Domitian was Roman emperor from 81 to 96. The son of Vespasian and the younger brother of Titus, his two predecessors on the throne, he was the last member of the Flavian dynasty. Described as "a ruthless but efficient autocrat", his authoritarian style of ruling put him at sharp odds with the Senate, whose powers he drastically curtailed.
The 90s was a decade that ran from January 1, AD 90, to December 31, AD 99.
AD 98 (XCVIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Traianus. The denomination AD 98 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
A nuclear thermal rocket (NTR) is a type of thermal rocket where the heat from a nuclear reaction, often nuclear fission, replaces the chemical energy of the propellants in a chemical rocket. In an NTR, a working fluid, usually liquid hydrogen, is heated to a high temperature in a nuclear reactor and then expands through a rocket nozzle to create thrust. The external nuclear heat source theoretically allows a higher effective exhaust velocity and is expected to double or triple payload capacity compared to chemical propellants that store energy internally.
Project Prometheus was established in 2003 by NASA to develop nuclear-powered systems for long-duration space missions. This was NASA's first serious foray into nuclear spacecraft propulsion since the cancellation of the SNTP project in 1995. The project was planned to design, develop, and fly multiple deep space missions to the outer planets.
The Nuclear Engine for Rocket Vehicle Application was a nuclear thermal rocket engine development program that ran for roughly two decades. Its principal objective was to "establish a technology base for nuclear rocket engine systems to be utilized in the design and development of propulsion systems for space mission application". It was a joint effort of the Atomic Energy Commission (AEC) and the National Aeronautics and Space Administration (NASA), and was managed by the Space Nuclear Propulsion Office (SNPO) until the program ended in January 1973. SNPO was led by NASA's Harold Finger and AEC's Milton Klein.
A radioisotope rocket or radioisotope thermal rocket is a type of thermal rocket engine that uses the heat generated by the decay of radioactive elements to heat a working fluid, which is then exhausted through a rocket nozzle to produce thrust. They are similar in nature to nuclear thermal rockets such as NERVA, but are considerably simpler and often have no moving parts. Alternatively, radioisotopes may be used in a radioisotope electric rocket, in which energy from nuclear decay is used to generate the electricity used to power an electric propulsion system.
The Space Transportation System (STS), also known internally to NASA as the Integrated Program Plan (IPP), was a proposed system of reusable crewed space vehicles envisioned in 1969 to support extended operations beyond the Apollo program.. The purpose of the system was two-fold: to reduce the cost of spaceflight by replacing the current method of launching capsules on expendable rockets with reusable spacecraft; and to support ambitious follow-on programs including permanent orbiting space stations around Earth and the Moon, and a human landing mission to Mars.
The Westinghouse Astronuclear Laboratory (WANL) was a division of Westinghouse Electric Corporation. Established in 1959 to develop nuclear space propulsion technologies for the government, the lab was located, for most of its history, in the paradoxically small town of "Large" along Pa. Rte 51, about 13 miles (21 km) south of Pittsburgh in Allegheny County, Pennsylvania, USA. The site is not far from the Bettis Atomic Power Laboratory in West Mifflin, which Westinghouse operated during the same time and later.
The Nerva–Antonine dynasty comprised seven Roman emperors who ruled from AD 96 to 192: Nerva (96–98), Trajan (98–117), Hadrian (117–138), Antoninus Pius (138–161), Marcus Aurelius (161–180), Lucius Verus (161–169), and Commodus (177–192). The first five of these are commonly known as the "Five Good Emperors".
Marcus Cocceius Nerva may refer to:
Lucius Julius Ursus Servianus was an Iberian Roman politician. He was a prominent public figure in the reigns of Roman emperors Nerva, Trajan and Hadrian. He was the last private citizen to receive a third consulship; such honors came to be reserved for members of the emperor's family.
Forum of Nerva is an ancient structure in Rome, Italy, chronologically the next to the last of the Imperial fora built.
Project Rover was a United States project to develop a nuclear-thermal rocket that ran from 1955 to 1973 at the Los Alamos Scientific Laboratory (LASL). It began as a United States Air Force project to develop a nuclear-powered upper stage for an intercontinental ballistic missile (ICBM). The project was transferred to NASA in 1958 after the Sputnik crisis triggered the Space Race. It was managed by the Space Nuclear Propulsion Office (SNPO), a joint agency of the Atomic Energy Commission (AEC), and NASA. Project Rover became part of NASA's Nuclear Engine for Rocket Vehicle Application (NERVA) project and henceforth dealt with the research into nuclear rocket reactor design, while NERVA involved the overall development and deployment of nuclear rocket engines, and the planning for space missions.
Nerva was Roman emperor from 96 to 98. Nerva became emperor when aged almost 66, after a lifetime of imperial service under Nero and the succeeding rulers of the Flavian dynasty. Under Nero, he was a member of the imperial entourage and played a vital part in exposing the Pisonian conspiracy of 65. Later, as a loyalist to the Flavians, he attained consulships in 71 and 90 during the reigns of Vespasian and Domitian, respectively. On 18 September 96, Domitian was assassinated in a palace conspiracy involving members of the Praetorian Guard and several of his freedmen. On the same day, Nerva was declared emperor by the Roman Senate. As the new ruler of the Roman Empire, he vowed to restore liberties which had been curtailed during the autocratic government of Domitian.
Marcus Sergius or Servius Octavius Laenas Pontianus was a Roman politician of the early second century. He served as consul in AD 131, alongside Marcus Antonius Rufinus, during the reign of Hadrian.
The gens Ulpia was a Roman family that rose to prominence during the first century AD. The gens is best known from the emperor Marcus Ulpius Trajanus, who reigned from AD 98 to 117. The Thirtieth Legion took its name, Ulpia, in his honor. The city of Serdica, modern day Sofia, was renamed as Ulpia Serdica.
The United States Space Nuclear Propulsion Office (SNPO) was a US government agency created in 1961 in response to NASA Marshall Space Flight Center's desire to explore the use of nuclear thermal rockets created by Project Rover in NASA space exploration activities.
A thermal rocket is a rocket engine that uses a propellant that is externally heated before being passed through a nozzle to produce thrust, as opposed to being internally heated by a redox (combustion) reaction as in a chemical rocket.
The gens Cocceia was a plebeian family at ancient Rome. The gens is first mentioned towards the latter end of the Republic, and is best known as the family to which the emperor Nerva belonged.
