This occurs as a result of the planet's gravity, and also because of the effects of its magnetic field. Now, if material from Saturn's rings is being lost and nothing new is added from time to time, the rings would be disappearing. But that's not happening! So somehow, there must ...
Earth’s have a gravitational pull that keeps us on the ground so we won’t float off in space. What is the earth’s atmosphere made of? earth’s atmosphere has 78% oxygen 21% and other gases that surroundsearth. What is gravity made of? Space has these little balls that are called...
While we have made significant progress in understanding gravity, it remains a fascinating and somewhat mysterious phenomenon. Whether it is the force that keeps us grounded, the reason planets orbit the sun, or the subject of groundbreaking scientific theories, gravity is a fundamental force that ...
have __14__ spaceships to the moon and to the two __15__ planets Mars(火星) and Venus(金星).By putting a camera on __16__ the spaceship to the moon,men have been able to __17__ photographs of the other side of the moon.This side is always __18__ from us as the moon _...
Does Earth have an asteroid belt? Why did the asteroid belt not form other terrestrial planets? Is the asteroid belt shrinking? Does Pluto orbit outside the Kuiper belt? Is the asteroid belt visible from Earth? Have any probes collided in the asteroid belt?
there'd be other solids like frozen water and frozen ammonia. Student: So more solid substances are available to clump into proto-planets, right? Professor: Precisely! So the solid cores of the gas giants could conceivably have formed by accretion. And once their mass reaches a certain point...
Gravity is the reason things with mass or energy are attracted to each other. It is why apples fall toward the ground and planets orbit stars. 为什么重力把我们往下而不是往上拉? 重力是有质量或能量的物体相互吸引的原因。这就是为什么苹果会向地面坠落,行星会围绕恒星运行。
How does gravity affect wind erosion? Why does the Earth spin? Why does air resistance increase with speed? Why is the Earth round? Why did Newton propose gravity to govern the paths of the planets? Why do we have time zones? Why does Earth have a magnetic field? Why does a magnet lo...
They said a planet must do these three things: it has to orbit around the sun, must be big enough to have gravity to force it into a spherical shape, and must be big enough that its gravity cleared away any other objects of a similar size near its orbit around the sun. This ...
lf a comet on one of these long period orbits at some point comes close to Jupiter or Saturn or one of the other planets, then the pull of that planet's gravity might alter the orbit, maybe make it much shorter.So this comet, if it happens to pass by a planet just the right way...