squirrel climbed down to the ground to pick another pecan. Once again, he took the pecan back to his secret hiding place inside the hollow(洞) of the tree. Not so secret anymore,I thought. I ran over to the tree and found the hollow was filled with sweet pecans. They were right ther...
Professor: OK. We've been discussing the planets in our solar system and how some of the ones farthest from the sun were discovered. Well, today I'd like to turn to what are called exoplanets and how researchers detect them. Maria?
声明: 本网站大部分资源来源于用户创建编辑，上传，机构合作，自有兼职答题团队，如有侵犯了你的权益，请发送邮箱到feedback@deepthink.net.cn 本网站将在三个工作日内移除相关内容,刷刷题对内容所造成的任何后果不承担法律上的任何义务或责任
百度试题 结果1 题目 When the Egyptians adopted the seven-day week,they named the days after five planets,the sun and the moon. 相关知识点: 试题来源: 解析 反馈 收藏
When Earth passes through the comet's debris, the "comet crumbs" heat up as they enterEarth's atmosphereand produce impressive "shooting stars" that streak across the sky. 55P/Tempel-Tuttle is a small comet with a nucleus measuring just 2.24 miles (3.6 km) across. It was discovered indepe...
The Orionids are visible to skywatchers in both the Northern and Southern Hemispheres (weather permitting). Meteor showers are named after the constellation from which the meteors appear to emanate, known as the radiant. From Earth's perspective, the Orionid meteor shower appears to come approxima...
Scientists say they discovered an earth-like planet orbiting the star closest to our planet other than the sun. It is the closest planet ever found outside our solar system that could support life as we know it. This planet is just 4.2 light years away from us. It is so close that spa...
Last month I observed the stars closely through a telescope. Where and with whom you went with? I went to the science city Kapurthala for a knowledge tour. We are about eighty people in the group, and all were enthusiastic about gaining information regarding the stars and the planets. ...
3. How many of Saturn’s moons were discovered before 2019? A.63.B.93.C.101.D.332. 4. What can we infer from the passage? A.It is easy to discover all moons.B.JUICE is trying to find out new planets. C.More research is being done on Jupiter.D.People all like new moons. ...
However, it would probably be very tricky to land a spaceship in the middle of pictures of dogs and monkeys. In the 1940s, an American explorer named Paul Kosok suggested that the drawings were a chronicle of the movement of the stars and planets. He called Nazca “...