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  1. Feb 13, 2020 · This time, the Venus missions will face stiff competition from proposals to visit Io, Jupiter's large volcanic moon, and Triton, Neptune's icy moon, neither of which has been closely explored. Each proposal receives $3 million to flesh out their concept over the next year. After that, NASA plans to select two for flight.

  2. Oct 19, 2023 · New Horizons flew past Neptune and its moon Triton in 2014 from a distance of about 2.45 billion miles (3.96 billion kilometers), but also just zoomed past the planet. Placing a spacecraft in ...

  3. Jun 2, 2021 · This is really exciting stuff," Nelson said. Discovery missions are capped at $500 million, excluding costs for the launch vehicle and mission operations. Both new Venus missions will launch ...

  4. Feb 14, 2020 · The last U.S.-led mission to Venus that measured its environment was Pioneer Venus 2, which launched in 1978. Otherwise, spacecraft have flown by Venus from a distance, or worse, used it as a ...

  5. Jun 16, 2020 · The proposed launch date in October 2025 (with a backup in October 2026) would take advantage of a once-in-a-13-year window, when Earth is properly aligned with Jupiter. The spacecraft would use the gravitational pull of Jupiter as a slingshot straight to Triton for an extended 13-day encounter in 2038.

  6. Jun 3, 2021 · Composite image of Venus based on data from NASA’s Magellan spacecraft and Pioneer Venus Orbiter. The space agency is now developing two new missions to Venus, each designed to reveal hidden ...

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  8. Jun 2, 2021 · NASA's VERITAS spacecraft (lower left) will create the best yet radar and infrared maps of Venus while studying the planet's interior; the space agency's DAVINCI+ mission will observe the planet ...