when was the last space shuttle explosion

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
when was the last space shuttle explosion	0.18	0.5	229	32	41
when	1.15	0.1	7385	88	4
was	1.38	0.4	2853	26	3
the	0.25	0.1	2559	56	3
last	0.1	0.9	4952	15	4
space	0.19	0.2	8394	49	5
shuttle	1.67	0.8	3830	8	7
explosion	0.47	0.7	4202	47	9

Keyword	CPC	PCC	Volume	Score
when was the last space shuttle explosion	1.14	0.8	5435	25
last space shuttle explosion	1.39	1	5272	91
when was the space shuttle explosion	0.37	0.6	9143	1
what year was the space shuttle explosion	1.47	0.1	1406	45
when did the space shuttle explode	1.64	0.5	3151	96
what year did the space shuttle exploded	1.91	0.6	5529	100
what year did the space shuttle explode	1.15	1	3464	77
when the space shuttle exploded	1.77	0.8	3197	86
what date did the space shuttle explode	1.77	0.2	3551	71
last space shuttle disaster	1.92	0.7	2611	97
space shuttle explosions by year	1.81	0.2	2480	43
what time did the space shuttle explode	0.82	0.3	4265	54
the space shuttle that exploded in 1986	0.14	0.3	4188	2
what day did the space shuttle explode	1.87	0.1	1942	8
space shuttle explosion 2003	0.66	0.2	9532	42
space shuttle 1986 explosion	0.36	1	1844	56
space shuttle explosions in history	1.86	0.5	6737	66
space shuttle that exploded in 2003	0.59	0.3	3490	5