Gas Balloon - On Other Planets

On Other Planets

The Russian space probes Vega 1 and Vega 2 each dropped a helium balloon with scientific experiments into the atmosphere of Venus in 1985. The balloons first entered the atmosphere and descended to about 50 km, then inflated for level flight. Otherwise the flight was uncontrolled. Each balloon relayed wind and atmospheric conditions for 46 hours of a possible 60-hour electric battery power budget.

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Famous quotes containing the word planets:

    “I would sell my life to avoid
    the pain that begins in the crib
    with its bars or perhaps
    with your first breath
    when the planets drill
    your future into you....”
    —Anne Sexton (1928–1974)