What is Mariner 3?
{{Infobox spaceflight | name = Mariner 3 | image = Mariner 3 and 4.jpg | image_caption = The Mariner 3 spacecraft | mission_type = Mars flyby | operator = [[NASA]] / [[Jet Propulsion Laboratory|JPL]] | mission_duration = Launch failure | COSPAR_ID = 1964-073A | SATCAT = 923 | spacecraft_type = | manufacturer = [[Jet Propulsion Laboratory]] | dry_mass = | launch_mass = {{convert|260.8|kg|lb}} | power = 300&nbsp;watts (at Mars encounter) | launch_date = {{start-date|November 5, 1964, 19:22:05|timezone=yes}}&nbsp;UTC | launch_rocket = [[Atlas-Agena|Atlas LV-3 Agena-D]] | launch_site = [[Cape Canaveral Air Force Station|Cape Canaveral]] [[Cape Canaveral Air Force Station Launch Complex 13|LC-13]] | launch_contractor = | orbit_epoch = | orbit_reference = [[heliocentric orbit|Heliocentric]] | orbit_periapsis = | orbit_apoapsis = | orbit_inclination = | orbit_semimajor = | orbit_eccentricity = | orbit_period = | apsis = helion }} '''Mariner 3''' was a [[NASA]] [[spacecraft]]. It was the third spacecraft in the [[Mariner program]]. It was designed to take photos of the [[planet]] [[Mars]] after an eight month journey studying interplanetary (between planet) [[Outer space|space]].<ref name=nasa1>{{cite web|url=http://solarsystem.nasa.gov/missions/profile.cfm?MCode=Mariner_03|title=Mariner 3|publisher=NASA|accessdate=2011-09-05|archive-date=2011-05-16|archive-url=https://web.archive.org/web/20110516142501/http://solarsystem.nasa.gov/missions/profile.cfm?MCode=Mariner_03|url-status=dead}}</ref> However, the spacecraft lost power eight hours after launch, and it never achieved the correct [[Mars]] [[trajectory]]. It eventually entered a heliocentric ([[Sun]]-centred) [[orbit]].<ref name=nasa1 /> ==References== {{reflist}} == Other websites == *{{cite web|url=http:/