Your current location:HOME >business >Astronomers find vast underground ocean under Saturn's Death Star 正文
TIME:2024-05-08 18:23:42 Source: Internet compilationEdit:business
CAPE CANAVERAL, Fla. (AP) — Astronomers have found the best evidence yet of a vast, young ocean bene
CAPE CANAVERAL, Fla. (AP) — Astronomers have found the best evidence yet of a vast, young ocean beneath the icy exterior of Saturn’s Death Star lookalike mini moon.
The French-led team analyzed changes in Mimas’ orbit and rotation and reported Wednesday that a hidden ocean 12 to 18 miles (20 to 30 kilometers) beneath the frozen crust was more likely than an elongated rocky core. The scientists based their findings on observations by NASA’s Cassini spacecraft, which observed Saturn and its more than 140 moons for more than a decade before diving through the ringed planet’s atmosphere in 2017 and burning up.
Barely 250 miles (400 kilometers) in diameter, the heavily cratered moon lacks the fractures and geysers — typical signs of subsurface activity — of Saturn’s Enceladus and Jupiter’s Europa.
“Mimas was probably the most unlikely place to look for a global ocean — and liquid water more generally,” co-author Valery Lainey of the Paris Observatory said in an email. “So that looks like a potential habitable world. But nobody knows how much time is needed for life to arise.”
Senators hire Travis Green as coach. Green leaves the Devils after serving in an interim role2024-05-08 18:12
Abu Ghraib detainee shares emotional testimony during trial against Virginia military contractor2024-05-08 18:08
Chicago White Sox activate slugger Eloy Jiménez from the 102024-05-08 17:55
Maine is the latest to join an interstate compact to elect the president by popular vote2024-05-08 17:19
Ben Affleck did NOT get plastic surgery ahead of Tom Brady's Netflix roast2024-05-08 16:39
Padres sign veteran infielder Donovan Solano to minor league deal2024-05-08 16:24
Lloyd Omdahl, a former North Dakota lieutenant governor and newspaper columnist, dies at 932024-05-08 16:19
China's largest freshwater lake sees rising water level2024-05-08 16:17
Greg Norman and Phil Mickelson make for an interesting week on LIV Golf2024-05-08 16:05
Diggs gives Stroud, Texans another playmaker and vaults them into Super Bowl conversation2024-05-08 15:54
Marseille survive Villarreal fightback to go through2024-05-08 18:12
China handles nearly 5.19 mln entry2024-05-08 18:12
Bill meant to improve math skills passes as Kentucky lawmakers approach end of legislative session2024-05-08 18:02
Women's soccer coach accused of sexual harassment in Brazil resigns after protests2024-05-08 17:52
Shanghai Shenhua soars as Changchun Yatai struggles in Chinese Super League2024-05-08 17:46
4 killed in coal mine accident in central China2024-05-08 17:18
Bill meant to improve math skills passes as Kentucky lawmakers approach end of legislative session2024-05-08 16:53
The pilots union at American Airlines says it's seeing more safety and maintenance issues2024-05-08 16:50
Shanghai rout Zhejiang as unbeaten run reaches 102024-05-08 16:22
Busch Gardens Tampa Bay: Endangered Bornean orangutan born in Florida2024-05-08 15:37