当代研究生英语(上)unit5拓展.pptVIP

Moon Statistics Mass (kg) 7.349e+22 Equatorial radius (km) 1,737.4 Equatorial radius (Earth = 1) 2.7241e-01 Mean density (gm/cm^3) 3.34 Mean distance from Earth (km) 384,400 Rotational period (days) 27.32166 Mean surface temperature (day) 107°C Mean surface temperature (night) -153°C Maximum surface temperature 123°C Minimum surface temperature -233°C The human new exploration of the universe October 4, 1957, the worlds first man-made earth satellite launch In July 20,1969, Apollo 11 landed on the Moon Chinas first man-made earth satellite dongfanghong number one the space probed Venera 1 had probe the Venus,in Nov.28,1965 Resources satellite Resources satellite，survey and research the earth is natural resources satellite. It can see through formation, found people invisible to the underground treasure, historic sites, the strata structure, can census crops, forest, the sea, the air, resources, and forecast of serious natural disasters. Communication satellite Reconnaissance satellite Science experiment satellite Alliance manned spaceship The shenzhou number two spacecraft The space shuttle endeavour The shenzhou 5 manned space mission success The space shuttle discovery Mir Space Station Peace from space fall the earth, debris splashed down in the Pacific. The expansion of the universe discovered a universal resonance is the force that is causing the universe to expand. But also rather than expand like a universal dynamo the same resonance is drawing the universe outwards, the energy not being able to be more inside the universe than what is put in that system. Cosmic expansion contributes to redshift Kathryn Reese-Taylor on the Mayans and 2012 2012 the end of the world mayan prophecy introduction: Did you leave out the part about the end of the world? No, because they actually didn’t say that. Nowhere did the Maya say, at any point in time, that the world will end. They don’t even say that their calendar will end and it is going to restart. The Maya, i