, the International Astronomical Union announced on Oct 7. Three of Saturn’s moons move around the planet...土星超越木星成为“卫星王”。Which planet in the solar system (太阳系) is the “king of the moons (卫星)”? The title ……

SCIENTISTS have long been hoping to find another planet like the Earth to give humans somewhere to move to when one day the Earth gets too crowded. NASA announced on December 5 that they had ……

Planet. Every year in November and December, the crabs move from their forest homes to the beaches ……

's recentdeparture(离开) from the classical planet family clearly proves that size really matters.Astronomers voted on August 24 to create the first scientificdefinition(定义) of the word "planet", and Pluto obviously ……

color is blue-green. The planet is very far away from the sun. So it is very cold. It is the coldest planet in the solar system. It is about -200 C. Now Uranus has a new title. It is the most smelly ……

LONDON - Scientists have found an unusual way to prevent our planet from overheating: Move... billion years to the useful lifetime of our planet - effectively doubling its working life.The plan put ……

The Amazon rainforest has been described as the “lungs of our planet”. More than 20% of the planet’s oxygen is produced there! ……

The Amazon rainforest has been described as the “lungs of our planet”. More than 20% of the planet’s oxygen is produced there! ……

. They are in a spaceship.Peter sees a(n) _______ planet (星球). Everything on this planet is red. Look at the _______ and the _______. They are all red.Billy sees another planet. Everything on this planet is yellow. The sky ……

solar system (太阳系). But what is a habitable planet like? In short, the more similar to Earth, the better. It should be as big as Earth. And it should be a rocky planet. Gas planets like Jupiter (木星 ……

to be a planet orbiting another star last week. If so, it would be the first confirmed picture....The planets move around the Sun alongoval-shaped(椭圆型的) paths called orbits. One complete path around ……

the spacesuit has thick gloves and boots to keep astronauts warm. The gloves can move freely - an.... Too heavy, you think? It would weigh only about 7 kilograms on Mars, because the planet has ……

. The planet of Cybertron is home to a race of robots. The robots can change themselves into other.... The Autobots have to fight for their lives. Soon they use up the planet's energy.Things get worse. Both ……

Lightning strikes about 6,000 times per minute on this planet. ……

noisily with Lion dances and fireworks in New York, San Francisco and Toronto.The planet started... pictures.In the 1960's rockets showed a few men our blue planet for the first time whole, from its ……