单词：outer planets
单词：outer planets 相关文章
NASA Spacecraft, Dawn, Close to Reaching a 'Dwarf Planet' 美国黎明号航天器,接近矮行星 An American spacecraft is moving closer to a dwarf planet called Ceres. The American space agencys Dawn spacecraft is set to reach the planet-like obje
2015年VOA慢速英语(一)月
…cold conditions that earth has to offer. Professor Freeman believes these rugged microorganisms are probably capable of surviving on Mars. Mars is certainly our best bet for finding life in the inn
寻访外星人
This is Scientific Americans 60-Second Science. Im Steve Mirsky. This will just take a minute. Computer status report. After its ongoing Mars missions, NASA will concentrate less on the red planet, and more on the solar system's other planets and moo
Scientific American(三)月
AS IT IS 2014-07-22 NASA to Discover Life in Outer Space 美国国家航空航天局在外太空发现生命 NASA scientists say they are closer than ever to finding life beyond Earth. Several leading NASA scientists spoke to a gathering July 14th at
2014年VOA慢速英语(七)月
New Horizons Space Probe Gets Mission Extension The U.S. space agency has announced it is extending the mission of the New Horizons spacecraft. New Horizons is a spacecraft without a human crew. It was the first spacecraft to visit the dwarf planet P
2016年VOA慢速英语(七)月
You know, the indications there are a lot of those stars have planets, maybe have them built since planets you know, being like kittens, you know, just dig one, you get a couple. They are probably on the order of the million and million planets out t
自然百科2011年