If a massive asteroid hit earth, would it be more catastrophic if it hit land or open ocean?
Would we be better off if an asteroid hit land or water?
If we detected a planet-killing asteroid, is there anything we could do about it at the present time? Could an asteroid impact knock the Moon into the Earth? How would the earth have evolved if the asteroid didn't hit the earth and kill the dinosaurs? Will the earth be hit by a meteor? What if the asteroid belt didn't exist? Why do the asteroids in the asteroid belt not acrete? What could end the world except asteroids? What if, 65 million years ago, the asteroid didn't hit Earth and the dinosaur extinction didn't happen? What is the difference between a comet and an asteroid? What would happen on earth if a meteor hit the moon? What type of technology would we need to create an artificial atmosphere around an asteroid, or, a small object? What could possibly end the world except killer asteroids? What is difference between asteroid and comet? What would happen to Earth if the Moon is hit by an asteroid, forcing it to have a different orbit around the Earth, but at the same distance? Will gravity eventually pull the asteroid belt together to form a planet? If early Earth's water came via comets and meteors does our Moon and Mars also contain an equivalent amount of the same water? What asteroid is getting moved? Why don't the asteroids in the asteroid belt coalesce to form a planet? Why don't we load the earths trash on earth and launch it into space or toward the sun? How can we stop asteroids? What if the asteroid that killed the dinosaurs was a UFO and we are the aliens? What is the probability of a significant asteroid impact event by 2100? If wiping out human existence would save planet earth, and not doing so would lead to its complete destruction, should we do it? Can we bombard the whole asteroid belt into Mars and increase its mass to equal Earth and make it livable? Let's assume we start exploring other planets and we take water from earth. Will this diminish our water supply? (Assume only water source is Earth) Why is there an asteroid belt? Would the oceans on earth be affected if we had an irregular moon? When is NASA going to an asteroid? Interstellar (2014 movie): Shouldn't the waves on Miller's planet be rounder instead of mountain high when the water is so shallow? How fast would a 10km wide asteroid need to be travelling to destroy all the dinosaurs on earth?