Astronomy & Space

How did the Crab Nebula get to be 5.5 light years in radius

How did the Crab Nebula get to be 5.5 light years in radius if its supernova explosion only happened 1000 years ago?You know, because matter cant travel the speed of light. Something seems fishy here......

who came up with the laws that described the motions of the

who came up with the laws that described the motions of the planets?...

how many times bigger than the moon is the sun?

how many times bigger than the moon is the sun?...

If we continue to send satellites and things out to space, w

If we continue to send satellites and things out to space, wouldnt we lose a significant bit of Earths mass and resources?...

If we were to be looking at our Milky Way galaxy from outsid

If we were to be looking at our Milky Way galaxy from outside the galaxy, would we see the very bright inner part?If yes, why is it very dim as we see it, when we are in fact much closer?...

Is there a high possibility that the 24th century will look

Is there a high possibility that the 24th century will look like Star Trek?...

if the earth is round then why does the sun go up and down?

if the earth is round then why does the sun go up and down?...

Would a car with a standard combustion engine run perfectly

Would a car with a standard combustion engine run perfectly fine on Mars?Because there’s no ambient oxygen for the car to take in to oxidize the combustion. So that means no then right?...

Do you believe being s from other planets have visited earth

Do you believe being s from other planets have visited earth?...

If all scientists aren't lying and gravity is real why d

If all scientists arent lying and gravity is real why doesnt the moon fall down onto earth and kill all life?...

Is the universe expending or shrinking?

Is the universe expending or shrinking?...

how much light distance does earth have to the sun?

how much light distance does earth have to the sun?...

Has the Roswell incident been resolved yet?

Has the Roswell incident been resolved yet?...

does anyone else think that photo of the black hole is fake?

does anyone else think that photo of the black hole is fake?it has a reflection on it, how do gass clouds reflect??...

A giant black hole has suddenly appeared in the sky they are

A giant black hole has suddenly appeared in the sky they are saying on the news. What does this mean and could it be the end to earth?I feel frightened....