1974 in spaceflight explained

On 29 March 1974 Mariner 10 became the first spacecraft to fly by Mercury, that saw a spacecraft for the first and last time in the 20th century.

Orbital launches

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January

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February

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March

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April

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May

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June

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July

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August

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September

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October

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November

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December

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Suborbital launches

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January-March

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April-June

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July-September

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October-December

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Deep Space Rendezvous

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Date (GMT)	Spacecraft	Event	Remarks
5 February			Gravity assist Closest approach:
10 February			Closest approach: (orbiter mission)
12 February		Areocentric orbit injection
9 March		Lander missed mars by
12 March		Lander lost a few seconds before anticipated landing
29 March			Closest approach:
2 June		Selenocentric orbit injection	Photographic mission
21 September		2nd flyby of Mercury	Closest approach:
2 November			Sample return mission
3 December			Gravity assist; Closest approach: