Keyword Analysis & Research: when did the first spacecraft land on mars

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when did the first spacecraft land on mars	1.05	1	2090	59	42
when	0.82	0.8	9821	57	4
did	1.63	0.2	1760	9	3
the	1.99	0.4	3293	34	3
first	1.85	0.3	7760	53	5
spacecraft	0.59	0.9	9290	74	10
land	0.33	0.9	9759	12	4
on	1.89	1	4381	41	2
mars	1.15	0.9	9370	85	4

Keyword	CPC	PCC	Volume	Score
when did the first spacecraft land on mars	0.76	0.4	8824	33
first spacecraft to land on mars	0.74	0.9	8057	93
what was the first spacecraft to land on mars	1.96	0.2	7379	92
first spacecraft to land on mars called	0.04	0.2	4880	38
first spacecraft to land softly on mars	0.65	1	3328	97
name of the first spacecraft to land on mars	0.99	0.4	6033	70
first spacecraft to land on mars twice	0.59	1	5295	49
when did nasa first land a spacecraft on mars	0.5	0.9	7547	71