Galileo Unmanned Spaceflight

Galileo at Venus

NASA/JPL’s Galileo space probe – eventually bound for Jupiter – reaches the first destination on its looping “VEEGA” (Venus/Earth/Earth Gravity Assist) trajectory, the planet Venus. This flyby of Venus allows for testing of Galileo’s cameras and other science instruments, offering the first near-infrared views of the planet’s dense clouds, and the discovery that there is …

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Magellan Unmanned Spaceflight

Magellan goes fourth at Venus

NASA’s unmanned Magellan space probe, having completed three extensive campaigns of mapping the surface of Venus from orbit with cloud-penetrating radar, begins a fourth mission phase, this time sending constant engineering telemetry to Earth, where measurements of Doppler shift in the signal received allows Earthbound scientists to map the gravitational field of Venus. Magellan’s map-making …

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