Jan 16

Space Rocket History #46 – Mariner 4

Mariner 4’s primary objective was to conduct closeup scientific observations of Mars and to transmit these observations to Earth. Additional goals included performing field and particle measurements in interplanetary space, and providing experience and knowledge of engineering capabilities for interplanetary flights of long duration…

Mariner 4

Mariner 4

Launch on Atlas-Agena

Launch on Atlas-Agena

Mariner 4's Photo Path

Mariner 4’s Photo Path

Mariner Crater on Mars

Mariner Crater on Mars

Highland Craters

Highland Craters

Mars Image given to President Johnson

Mars Image given to President Johnson

Jun 06

Space Rocket History #15 – Sputnik 3 & Luna 1

The launch vehicle for the Luna E-1 series was a modified R7 named Vostok.  The Vostok had three stages.  The first and second stage were the standard R-7 which we covered in Episode 9.  A 5.1 meter long by 2.4 meter diameter third stage was added to the top of the R-7.  The third stage weighed 1472 kg and was capable of delivering 54.5 kiloNewtons or 12,252 lbs of thrust.  This was the probes booster stage that gave it enough speed to escape Earth’s gravity.

800px-Спутник-3

Sputnik 3

R-7_(7A)_misil.svg

R-7

Luna_1_1

Luna 1

Vostok - 8K72K

Vostok