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lander (Viking) click to hear : lander (Viking)

Spacecraft designed to touch down on the surface of the celestial body so as to study it.
lander (Viking) image
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radioisotope thermoelectric generator collector head UHF antenna shock absorber propellant tank high gain antenna camera terminal descent engine temperature sensor furlable boom

radioisotope thermoelectric generator click to hear : radioisotope thermoelectric generator

Device that supplies electrical power; converts the heat released by the radioactive decay of a substance it contains into electricity.

collector head click to hear : collector head

Shovel used to collect soil samples, which are analyzed on-site.

UHF antenna click to hear : UHF antenna

Antenna used to establish radio contact with the orbiter.

shock absorber click to hear : shock absorber

Piece of equipment deployed to cushion the impact when the lander touches down.

propellant tank click to hear : propellant tank

Place where fuel for the descent engines is stored.

high gain antenna click to hear : high gain antenna

Principal antenna pointed toward Earth to transmit large quantities of scientific data as well as photographs.

camera click to hear : camera

Two cameras make it possible to obtain three-dimensional color images of the celestial body’s surface.

terminal descent engine click to hear : terminal descent engine

Rocket engine that allows the lander to slow down before it touches the ground.

temperature sensor click to hear : temperature sensor

Instrument that measures the surface temperature of the celestial body.

furlable boom click to hear : furlable boom

Mobile extension arm serving to dig into the soil and collect samples.