Community > Posts By > mnemosyneis
Topic:
Moon was once much closer
|
|
An earlier reply was very accurate. The moon over the time of its existence (made by a large bodied impact with the young earth that sent the earth's crust into space where forces formed it into the moon) has slowed the earth's spin - now at 1000 miles per hour. The earth's cycle was much shorter than 24 hours; shorter than 20. Much shorter. The moon also holds the earth much more stable in its wobbling axis - without it we would 'wobble' to an extent that life would be difficult to sustain. It does move further away every year and has been at about 1 1/2 inches per year. This is basically because even though it has slowed our spin, our gravity forces (because of that spin)- literally flings - it away. It will take a very, very long time before it leaves us significantly, maybe getting scooped up by Jupiter's gravitational field. It's questionable what will happen to the earth. However, the sun does have an expiration date: 2-4 billion years from now it will run out of fuel and become a white dwarf after first swelling and then collapsing in a spectacular event. Also, it's just possible that nearby Andromeda may collide with our galaxy first...so...perhaps the collision would change everything...
|
|
|
|
Halloween!!!
|
|
|
|
One word responses to questions that invite conversation. Then a blow up when you wish them luck on their search. (shrugs) What? |
|
|
|
wtf??!! 6 am already?
...that was 2 thoughts... |
|
|
|
One word responses to questions that invite conversation. Then a blow up when you wish them luck on their search. (shrugs)
|
|
|