Frankly speaking, despite its drawbacks and potential risks, we have to admit that we have benefited a lot from space exploration. On the one hand, satellites sent to outer space provides us with great convenience, such as communication, wea...
According to IAU.a "dwarf planet" should have an orbit around the Sun.It will not have a clear neighborhood around its orbit, and must not be a satellite.The new classification means that the science textbooks will have to be updated.The solar system is now made up of the eight "classic...
There are nearly 2,800 working satellites in space,which we depend on for technology we use every day,such as video calls,online maps,satellite TV,and weather tracking.Scientists use them to study space and learn more about our planet. But there are many other satellites in orbit(轨道)that...
试题分析:考查强调句型。本题中的定语从句which is made in our country修饰先行词the man- made satellite。第一空和第二空的强调句型。句意:那颗我国生产的人造地球卫星要花48小时才可以绕地球飞行一周。故D正确。 考点:考查强调句型。 点评:强调句型的最大特点是把it is/was…that/who去掉句子仍然是成立的...
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aFor the fist time Venusian scientists managed to land a satellite on the planet Earth,and it has been sending back signals as well as photographs ever since. 为拳头时间Venusian科学家设法登陆一枚卫星在行星地球上和它退还信号并且相片自那以后。[translate] ...
根据“If LignoSat works well in space and the project is a success, then wood could be used to make more satellites in the future.”可知,科学家们对LignoSat的未来还不确定。故选C。 (4)题详解: 最佳标题题。根据“Japanese scientists have created a satellite made of wood, which will be ...
aFor the first time Venusian scientists managed to launch a satellite in orbit around the planet Earth, and it has been sending back signals as well as photographs ever since. Venusian第一次科学家设法在行星地球附近发射一颗卫星在轨道和它退还信号并且相片自那以后。 [translate] acurrently flying ...
While thousands of planets have been discovered around other stars, the vast majority of these detections have been made via indirect methods, that is, by detecting the effect of the planet on the star’s light, rather than detecting the planet’s light directly. For example, when a planet ...
Earth from space: Antarctica's 'Deception Island' is one of the only places on Earth where you can sail into an active volcanoA 2018 satellite photo shows the aptly named Deception Island, which was formed by a massive eruption 4,000 years ago and remains volcanically active today.Livescienc...