if a star fell on top of the Earth would we all be in trouble?

Answer 1

As the smallest possible star is still going to be many times more massive than the planet Jupiter, which is itself hundreds of times more massive than Earth, a star wouldn't be falling on top of Earth. Earth would be falling onto the star.

If the star was still burning, the Earth would vaporize some time around the moment of contact. A few thousand miles of rock gives it some pretty good ablation shielding, so having not done the calculations I can't be sure that some of it wouldn't be around at the point what was left hit the star's photosphere (visible surface), but very clearly it wouldn't last much longer.

If the star had died, turning into white dwarf or a neutron star, the earth and its inhabitants wouldn't be vaporized. Instead, they and all or most of the atoms comprising their mass would be crushed down into some kind of degenerate matter. Some small portion of our combined mass might make it into the normal matter crust of a neutron star, but the bulk of it would be crushed down the point at which even our individual atomic nuclei wouldn't survive. Most of what was left of us would be a superheated mass of neutronium, warm from the heat of impact at the relativistic speeds we'd have acquired dropping down that gravitational well.

If the star had died and become a black hole, the good news would be that we wouldn't be vaporized or turned into neutronium. The bad news is that we'd be pulverized by the tidal forces as we headed in over the event horizon, after which we'd be crushed downward into the infinitesimally small singularity at the center. Kind of like being extruded out of a tube of toothpaste into a container that is infinitely long but whose width approaches zero as you follow it out toward infinity.

Picture yourself then being crushed and torn apart simultaneously, stretched out into a one-dimensional mass, sort of a giant string of spaghetti. We would be in major trouble as we crossed the event horizon, even if we miraculously lived that long, but at least we wouldn't have to worry about it for long. The star would snuff us out in seconds or less.

Answer 2

Well since the star is more massive the earth would fall into the star. But the only star that is close at all is the Sun and we have lots of time left. If we could fall into a star we would be in trouble.

Answer 3

We would all be dead long before the star got near to the Earth, because even in the orbit the Earth is now, even a slight jolt from our orbit would cause the planet to warm up to the point of eventually incinerating us all.
The notion of a star headed toward the Earth is the same thing, the radiation and heat would literally bake the planet's surface by several million degrees, killing all life, evaporating oceans, and scorching the surface into glass-like substance before obliterating the planet as it consumes the Earth.

Answer 4

a star is huge, i mean look at the size of our sun. The sun is 93 million miles away, any closer, oceans would boil, any farther, oceans would freeze. We are in the goldie lock zone. Also a star would not fall into Earth, Earth would fall into a star. If Earth fell into the Sun, temp would reach millions of degrees. We would all die, vaporized.

Answer 5

You're right, dead trouble, a star is a sun. (Could also be Venus ..said to be the Evening or Morning star).

Earth would cease to exist.

Answer 6

If we even had a star within a gabillion miles of our solar system, we would die. The heat or two suns would cause an immediate global warming and pretty much make it too hot for humans to survive.

Answer 7

Depending on the size and type of star, we would all be dead, or a very large section of the Earth would explode and be gone, leaving us with only a part of our planet. Of course, I'm not sure how the gravitational systems would last with only a part of Earth existing, we may lose our atmosphere and die or suffication.

Answer 8

A star would suck the earth into itself and fry us at a few million degree. That would be a bad thing.

Answer 9

If a star wandered into the vicinity of our solar system, we would be in big trouble.

Answer 10

(this is only my opinion) yes we would all be in trouble because even if it was a small star it could raise temperature dramatically