who initiated it?
NASA
New Frontiers program
The New Frontiers program was developed and advocated by NASA and granted by Congress in CY 2002 and 2003. 
the atmospheric pressure on the surface of venus is 93 bar (9.3 MPa) when was this planet discovered? 1761 by whom? UNANSWERABLE is it possible to have life in it? Due to the harsh conditions on the surface, little of the planet has been explored, which may suggest that life may not necessarily be the same in other parts of the universe. does it have clouds? Yes, they obscure the surface of Venus from optical imaging, and reflect about 75% of the sunlight that falls on them. was there any missions sent to it? New Frontiers program what was it about? Furthering our understanding of the Solar System.
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New Frontiers program [SEP] History
The New Frontiers program was developed and advocated by NASA and granted by Congress in CY 2002 and 2003. This effort was led by two long-time NASA executives at headquarters at that time: Edward Weiler, Associate Administrator of Science, and Colleen Hartman, Solar System Exploration Division Director. The mission to Pluto had already been selected before this program was successfully endorsed and funded, so the mission to Pluto, called "New Horizons", was "grandfathered" into the New Frontiers program. The 2003 Planetary Science Decadal Survey from the National Academy of Sciences identified destinations that then served as the source of the first competition for the New Frontiers program.