スプートニク日本
カーネギー研究所のスコット・シェパード氏率いるグループが新たな衛星に初めて気づいたのは２０１７年の春だった。
シェパード氏は「木星は、我々が太陽系の遠方地域の調査を行う空間にあった。このことから我々は幸運なことに太陽系の端に惑星を見つけようとして、偶然に木星の衛星を見つけることになった」と語っている。
Colorful swirling cloud belts dominate Jupiter’s southern hemisphere in this image captured by NASA’s Juno spacecraft.
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© AFP 2023 / NASA/JPL/UNIVERSITY OF ARIZONA
This color image of Jupiter was taken by the camera onboard NASA's Cassini spacecraft and released by NASA 09 October, 2000 when it was 81.3 million kilometers (50.5 million miles) from the planet. It is composed of images taken in the blue, green, and red regions of the spectrum and is therefore close to the true color of Jupiter that one would see through an Earth-based telescope. Jupiter's moon Europa is seen at the right, casting a shadow on the planet. Scientists believe Europa holds promise of a liquid ocean beneath its surface.
Фотография Южного полушария Юпитера, сделанная космическим аппаратом Juno.
Astronomers are using NASA's Hubble Space Telescope to study auroras — stunning light shows in a planet's atmosphere — on the poles of the largest planet in the solar system, Jupiter.
Colorful swirling cloud belts dominate Jupiter’s southern hemisphere in this image captured by NASA’s Juno spacecraft.
2/4
© AFP 2023 / NASA/JPL/UNIVERSITY OF ARIZONA
This color image of Jupiter was taken by the camera onboard NASA's Cassini spacecraft and released by NASA 09 October, 2000 when it was 81.3 million kilometers (50.5 million miles) from the planet. It is composed of images taken in the blue, green, and red regions of the spectrum and is therefore close to the true color of Jupiter that one would see through an Earth-based telescope. Jupiter's moon Europa is seen at the right, casting a shadow on the planet. Scientists believe Europa holds promise of a liquid ocean beneath its surface.
Фотография Южного полушария Юпитера, сделанная космическим аппаратом Juno.
Astronomers are using NASA's Hubble Space Telescope to study auroras — stunning light shows in a planet's atmosphere — on the poles of the largest planet in the solar system, Jupiter.
発見された中でも他と類似点を持たないのがヴァレトゥド衛星で、直径１キロ未満と衛星のなかでは最小。他の衛星に比べ木星からずっと遠くに離れている一方で逆行衛星と交わる軌道を持っており、それとの衝突するの可能性もある。
今回の発見は太陽系の発展の初期段階を紐解く一助になりえると期待されている。
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