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Jupiter has been visited by automated spacecraft since 1973, when the space probe Pioneer 10 passed close enough to Jupiter to send back revelations about its properties and phenomena. [ 168 ] [ 169 ] Missions to Jupiter are accomplished at a cost in energy, which is described by the net change in velocity of the spacecraft, or delta-v .
Jupiter was known to astronomers of ancient times. [1] The Romans named it after their god Jupiter. [2] When viewed from Earth, Jupiter can reach an apparent magnitude of −2.94, bright enough for its reflected light to cast shadows, [3] and making it on average the third-brightest object in the night sky after the Moon and Venus.
Artist's depiction of Pioneer 10, the first spacecraft to visit Jupiter. The exploration of Jupiter has been conducted via close observations by automated spacecraft.It began with the arrival of Pioneer 10 into the Jovian system in 1973, and, as of 2024, has continued with eight further spacecraft missions in the vicinity of Jupiter and two more en route.
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In science class, we always learned that all the planets in our solar system orbit around the sun. Scientists have figured out this is not necessarily true.
An observer on Metis, the innermost moon, would see Jupiter's apparent diameter increased to 68° (130 times the visible diameter of the Moon, covering 18% of Metis's sky). A "full Jupiter" over Metis shines with about 4% of the Sun's brightness (light on Earth from a full moon is 400,000 times dimmer than sunlight).
Jupiter passes its neighbor Saturn in their respective laps around the sun every 20 years. Jupiter and Saturn will merge in the night sky Monday, appearing closer to one another than they have ...
Aug. 10—CAPE CANAVERAL, Fla. — Mars and Jupiter are cozying up in the night sky for their closest rendezvous this decade. They'll be so close Wednesday, at least from our perspective, that ...