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单词 New Horizons
释义
New Horizons

Astronomy
  • A NASA space probe to Pluto and the Kuiper Belt, launched in 2006 January. It flew past Pluto and its largest moon, Charon, in 2015 July, having gained a gravity assist from Jupiter in 2007 February. New Horizons photographed these bodies, analysed their surface compositions, and studied their atmospheres with the following instruments: the Long Range Reconnaissance Imager (LORRI), a high-resolution camera; Ralph, an instrument which combines the Multispectral Visible Imaging Camera (MVIC) and the Linear Etalon Imaging Spectral Array (LEISA, a near-infrared imaging spectrometer); Alice, an ultraviolet imaging spectrometer; REX, a radio-science experiment; the Solar Wind Analyzer around Pluto (SWAP); the Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI); and a student-built dust counter, SDC, which counts and measures the sizes of dust particles along the craft’s entire trajectory. After passing Pluto, New Horizons was put on course to fly past the Kuiper Belt object 2014 MU69 in 2019 January.

    http://pluto.jhuapl.edu/ Official mission website.


Space Exploration
  • A NASA mission to Pluto and the Kuiper Belt of comets beyond. Launched 19 January 2006, the craft swung past Jupiter for a gravity boost in 2007 and made its closest approach to Pluto and its moon, Charon, on 14 July 2015. The mission revealed Pluto as a diverse and complex world with canyons, polar caps, broad equatorial dark units, ice mountains, icy plains, craters, and an equatorial glacier. It also found evidence that clouds may form there at dusk and dawn; its moon Charon nearly mirrors Pluto with a landscape covered with mountains, canyons, landslides, surface-colour variations, and more. On 7 April 2017, New Horizons slipped into a 157-day hibernation, just hours before it passed the halfway point between Pluto and its next mission: a fly-by of Kuiper Belt object 2014 MU69 (1.6 billion km distant) on 1 January 2019; the craft is still operating normally 5.7 billion km from Earth.

    New Horizons

    An artist's concept of the New Horizons spacecraft as it approaches the dwarf planet Pluto and its largest moon, Charon, in July 2015.

    Credit: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI)


Geology and Earth Sciences
  • A NASA mission to Pluto and the Kuiper Belt that launched on 19 January 2006, flew past Pluto on 14 July 2015, and by September 2018 was entering the Kuiper Belt.

    http://pluto.jhuapl.edu New Horizons: NASA’s Mission to Pluto and the Kuiper Belt.


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