Keyword Analysis & Research: what was the first spacecraft to land on mars

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what was the first spacecraft to land on mars	1.82	0.6	9202	90	45
what	0.03	0.1	6237	77	4
was	1.56	0.6	4489	13	3
the	0.01	0.3	6609	78	3
first	1.33	0.3	8912	79	5
spacecraft	1.41	0.9	8043	13	10
to	0.86	0.2	8919	14	2
land	1.42	0.5	7310	81	4
on	0.6	0.5	3781	45	2
mars	1.43	1	4773	55	4

Keyword	CPC	PCC	Volume	Score
what was the first spacecraft to land on mars	1.43	0.1	1793	61
first spacecraft to land on mars	1.26	0.6	8209	69
when did the first spacecraft land on mars	1.57	0.3	8586	54
first spacecraft to land on mars called	0.94	0.4	5629	62
first spacecraft to land softly on mars	1.16	0.1	4885	9
name of the first spacecraft to land on mars	0.82	1	6209	30
first spacecraft to land on mars twice	0.53	0.1	8493	69
when did nasa first land a spacecraft on mars	1.72	0.3	3445	60