Search results
Results from the WOW.Com Content Network
Moissanite (/ ˈ m ɔɪ s ə ˌ n aɪ t /) [5] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral , discovered by the French chemist Henri Moissan in 1893.
The record for most time in space is held by Russian cosmonaut Oleg Kononenko, who has spent 1,111 days in space over five missions. He broke the record of Gennady Padalka on 4 February 2024 at 07:30:08 UTC during his fifth spaceflight aboard Soyuz MS-24 / 25 for a one year long-duration mission on the ISS . [ 21 ]
In these fragments he discovered minute quantities of a new mineral and, after extensive research, Moissan concluded that this mineral was made of silicon carbide. In 1905, this mineral was named moissanite, in his honor. In 1903 Moissan was elected member of the International Atomic Weights Committee where he served until his death.
First space walk/extra-vehicular activity (Alexei Leonov). USSR Voskhod 2: March 1965: First crewed spacecraft to change orbit. USA (NASA) Gemini 3: 14 July 1965: First flyby of Mars (returned pictures). USA (NASA) Mariner 4 [15] 14 July 1965: First photographs of another planet from deep space . USA (NASA) Mariner 4 [15] 15 December 1965
For example, the vibrational lines of polycyclic aromatic hydrocarbons (PAHs) were identified in 1984, [6] showing the class of molecules is very common in space, [7] but it took until 2021 to identify any specific PAHs through their rotational lines. [8] [9] The carbon star CW Leonis. The visible shells of circumstellar material were ejected ...
In 1929, the Slovene officer Hermann Noordung was the first to imagine a complete space station in his book The Problem of Space Travel. [7] [8] The first rocket to reach space was a German V-2 rocket, on a vertical test flight in June 1944. [9]
Police originally pulled over Theis for a broken taillight, but soon discovered more than $24,000 in cash he allegedly stole from a nearby bank, two facemasks, black latex gloves, wires and a ...
Terminated in 2009, remains in selenocentric orbit; discovered water ice on the Moon. [74] Moon Impact Probe was deployed from the orbiter. It successfully impacted Moon's Shackleton Crater in the USGS quadrangle LQ30 at 20:31 on 14 November 2008 releasing underground debris that could be analyzed by the orbiter for presence of water/ice.