The first months of observations of the solar system’s biggest planet from NASA’s Juno spacecraft have revealed huge swirling polar cyclones, previously-undetected structures and motions beneath Jupiter’s distinctive clouds, and the first evidence for what lies at the core of the gas giant, scientists said Thursday.
Concerns about the health of the Juno spacecraft’s main engine have compelled NASA managers to keep the research probe in its current arcing, high-altitude orbit around Jupiter, a decision that will delay the full science return from the $1.1 billion mission but should still allow it to meet all predetermined objectives.
NASA’s Juno spacecraft made a high-speed pass less than 3,000 miles over Jupiter’s turbulent clouds Thursday, taking dozens of pictures, measuring radiation and plasma waves, and peering deep inside the planet’s atmosphere, but officials still have not cleared the orbiter’s main engine for a planned maneuver to position the probe in its intended science orbit.
NASA’s Juno spacecraft will stay in its current long-period orbit around Jupiter until at least February, and perhaps longer, as engineers study balky valves inside the science probe’s propulsion system and an unexpected computer reboot that interrupted key functions of the orbiter earlier this month.
The Hubble Space Telescope has again spotted what appear to be towering plumes of water vapor erupting from Jupiter’s moon Europa, hinting that future spacecraft may be able to sample the hidden sea, a possible abode of life, without having to drill through miles of rock-hard ice, researchers said Monday.
© 1999-2024 Spaceflight Now Inc