Story & Art: Mac Raboy
Original run: 1958-05-04 to 1958-06-15
Summary: A deadly radioactive cloud is travelling fast through space after a violent Z bomb detonation on a war-ravaged planet, threatening the Milky Way and Earth with total annihilation.
Desperately computing the effectiveness of various febrile responses to the mortal threat on Earth’s observation satellite, Dr. Zarkov elects to send out Flash and his daredevil co-pilot on a near-impossible mission to divert the cloud from its course – with unforeseen consequences...
(Source of summary: www.ipcomics.net)
All credits go to "spax".
P.S. Tommorow S71 to S75. Have a nice time!