What was left on the moon in 1969?
It’s been almost 50 years since the moon’s first visitors arrived July 20, 1969. The Apollo 11 crew, the first moon walkers, brought a silicon disc the size of a 50-cent piece to leave on the moon. It contained “goodwill messages” from leaders of 73 countries written in tiny letters etched on the disc.
What is the temperature like on the moon?
When sunlight hits the moon’s surface, the temperature can reach 260 degrees Fahrenheit (127 degrees Celsius). When the sun goes down, temperatures can dip to minus 280 F (minus 173 C). There are also no seasons on the Moon.
Is the moon falling?
One could ask why the Moon doesn’t fall on Earth as an apple from the tree. The reason is that the Moon is never still. It constantly moves around us. Without the force of gravity from the Earth, it would just float away into space.
Why does moon not crash into Earth?
The Moon does not fall towards Earth right now because Earth rotates itself. The energy from the Earth’s own rotation around its axis is gradually tranferred into energy of the Moon’s orbital motion. That’s why the Earth’s rotating speed decreases but the distance to the Moon increases.
Will the moon eventually crash into the earth?
The Moon will swing ever closer to Earth until it reaches a point 11,470 miles (18,470 kilometers) above our planet, a point termed the Roche limit. Theory dictates they’ll eventually rain down onto Earth’s surface.
What keeps the moon in orbit?
Gravitational attraction provides the centripetal force needed to keep planets in orbit around the Sun and all types of satellite in orbit around the Earth. The Earth’s gravity keeps the Moon orbiting us. It keeps changing the direction of the Moon’s velocity.
What did Einstein mean when he said that gravity warps space?
It is here that Einstein connected the dots to suggest that gravity is the warping of space and time. Gravity is the curvature of the universe, caused by massive bodies, which determines the path that objects travel. In Einstein’s view of the world, gravity is the curvature of spacetime caused by massive objects.