and what was this about?
Spacecraft capabilities to long-duration flights, developing space rendezvous techniques, and precision Earth landing
NASA
Based on studies to grow the Mercury spacecraft capabilities to long-duration flights, developing space rendezvous techniques, and precision Earth landing
which planet is mercury? The smallest and innermost planet in the Solar System. can you describe its surface structure in few words? Mercury's surface is similar in appearance to that of the Moon, showing extensive mare-like plains and heavy cratering, indicating that it has been geologically inactive for billions of years is there any astronomer who visited it or had run a research on it? Yes, ancient astronomers made observations of Mercury can you name any two space probes which may have been used in its study? "Mariner 10" and "MESSENGER" please mention at least one of those observations? Mercury's apparent magnitude is calculated to vary between −2.48 around superior conjunction and +7.25 around inferior conjunction. who launched the former probe? NASA what is its full form? National Aeronautics and Space Administration when was it launched? 1974 was the latter probe also launched by the same organization? Yes, second NASA mission to Mercury and its launch date? August 3, 2004 has the organization been inherited from somewhere? Yes, from NACA of which project was it a part during 1961 to 66? Project Gemini
wiki:15224128
NASA [SEP] Project Gemini (1961–1966)
Based on studies to grow the Mercury spacecraft capabilities to long-duration flights, developing space rendezvous techniques, and precision Earth landing, Project Gemini was started as a two-man program in 1961 to overcome the Soviets' lead and to support the Apollo crewed lunar landing program, adding extravehicular activity (EVA) and rendezvous and docking to its objectives. The first crewed Gemini flight, Gemini 3, was flown by Gus Grissom and John Young on March 23, 1965. Nine missions followed in 1965 and 1966, demonstrating an endurance mission of nearly fourteen days, rendezvous, docking, and practical EVA, and gathering medical data on the effects of weightlessness on humans.