托福Z托福 41 - why Io differs so greatly from Earth’s Moon 材料音频 去精听 查看全文 题目 L1 123456 A . Io is volcanically active B . Io has several large impact craters C . Io’s orbit is highly irregular D . Io is closer to Jupiter than previously thought ...
It’s a long way, but it’s nothing compared to the Oort cloud. The starting line for the Oort cloud is somewhere between 2,000 and 5,000 AU and it extends up to 100,000 AU, roughly 1.5 light-years from here. It’s so far away and so vast that the Voyager spacecraft, ...
The spokes of Saturn’s rings were first discovered by the Voyager I and Ⅱ spacecraft when they passed close to the gas giant planet in 1980 and 1 The spokes are "a very complex phenomenon, and a difficult thing to untangle ", says Carolyn Porco of the Space Sci...
Elsewhere, Intuitive Machines (IM), SpaceX and NASA are getting ready for the next U.S. attempt to land on the Moon. For whatever reason, none of them will say what the potential launch dates are. They just keep saying “mid-February.” Spacecraft can only be launched to the Moon a ...
题目问美国航空航天局将要发射的是哪个航空器,文中明确提到:“The Messenger spacecraft will not go into orbit around the closest planet to the sun for several years”,故正确答案为选项C。反馈 收藏
Or to have seen what Voyager 1 saw as it made its closest approach to Saturn on this date in 1980? To watch Space Shuttle Columbia launch in 1981? Or even better, to have been around in 1833 – the night of the Great Leonid Meteor Shower! But this is here and now, so let’s ...
Artificial intelligence has a new challenge: Whether and how to alert people who may not know they're talking to a robot.
The carbon dioxide coming from some of Earth's tiniest residents may not be increasing as quickly as some believed in the face of global climate change.