Moon Formation

约 290 个结果

在新选项卡中打开链接

时间不限

nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › questions
Where did the Moon come from? - NASA
Various theories had been proposed for the formation of the Moon. Below these theories are listed along with the reasons they have since been discounted. The Fission Theory: This theory proposes that the Moon was once part of the Earth and somehow separated from the Earth early in the history of the solar system. The present Pacific Ocean basin ...
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › moon.html
StarChild: The Moon - NASA
Scientists theorize that the Moon was the result of a collision between Earth and an object the size of Mars. One theory states that the debris from the impact was hurtled into space where, due to gravity, it combined. This resulted in the formation of the Moon. The gravitational pull of the Moon on the Earth affects the ocean tides on Earth ...
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › questions
What are the phases of the Moon? - NASA
As the Moon moves eastward away from the Sun in the sky, we see a bit more of the sunlit side of the Moon each night. A few days after new moon, we see a thin crescent in the western evening sky. The crescent Moon waxes, or appears to grow fatter, each night. When half of the Moon's disc is illuminated, we call it the first quarter moon.
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › moon.html
StarChild: The Moon - NASA
The Moon travels around the Earth in an oval shaped orbit. Scientists think the Moon was formed long ago when Earth collided with another space object. The collision may have caused a big chunk of rocky material to be thrown out into space to form the Moon. The Moon is a little lopsided. Its crust is thicker on one side than the other.
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › solar_system.html
StarChild: The Solar System - NASA
These objects include planets, natural satellites such as the Moon, the asteroid belt, comets, and meteoroids. Our solar system has an elliptical shape and is part of a galaxy known as the Milky Way. The Sun is the center of the solar system. It contains 99.8% …
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › moon_facts.html
StarChild: Facts about the Moon - NASA
Earth Distance : 356,000 to 407,000 km; Revolution Period : 27.3 Earth days; Rotation Period : 27.3 Earth days
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › olympus_mons.html
Olympus Mons - NASA
Olympus Mons. Olympus Mons is the tallest mountain in the solar system.Its peak is over 26 kilometers above its base.
nasa.gov
https://starchild.gsfc.nasa.gov
StarChild: A Learning Center for Young Astronomers - NASA
2018年5月14日 · This site is intended for students in grades K through 8. StarChild is a learning center for young astronomers ages 5-13 to learn about the solar system, the Milky Way galaxy, and the universe beyond.
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › solar_system.html
StarChild: The Solar System - NASA
What is the solar system? It is our Sun and everything that travels around it. Our solar system is elliptical in shape.
nasa.gov
https://starchild.gsfc.nasa.gov › docs › StarChild › cosmology.html
StarChild: Cosmology - NASA
About 400 years ago, most people believed that Earth was at the center of the universe. They thought the Moon, the Sun, and the other planets all traveled around Earth. Nicholas Copernicus, Galileo Galilei, and Isaac Newton helped us to learn …
分页
- 1
- 2
- 3
- 4