What if the Sun become a black hole?

Answer 1

Well, first, let me assure you that the Sun has no intention of doing any such thing. Only stars that weigh considerably more than the Sun end their lives as black holes. The Sun is going to stay roughly the way it is for another five billion years or so. Then it will go through a brief phase as a red giant star, during which time it will expand to engulf the planets Mercury and Venus, and make life quite uncomfortable on Earth (oceans boiling, atmosphere escaping, that sort of thing). After that, the Sun will end its life by becoming a boring white dwarf star. If I were you, I'd make plans to move somewhere far away before any of this happens. I also wouldn't buy any of those 8-billion-year government bonds.
But I digress. What if the Sun *did* become a black hole for some reason? The main effect is that it would get very dark and very cold around here. The Earth and the other planets would not get sucked into the black hole; they would keep on orbiting in exactly the same paths they follow right now. Why? Because the horizon of this black hole would be very small -- only about 3 kilometers -- and as we observed above, as long as you stay well outside the horizon, a black hole's gravity is no stronger than that of any other object of the same mass.

Answer 2

Black holes do not go around in space eating stars, moons and planets. Earth will not fall into a black hole because no black hole is close enough to the solar system for Earth to do that.
Even if a black hole the same mass as the sun were to take the place of the sun, Earth still would not fall in. The black hole would have the same gravity as the sun. Earth and the other planets would orbit the black hole as they orbit the sun now.
Supermassive black hole Sagittarius A* is located in the middle of the Milky Way galaxy
Sagittarius A* is the black hole at the center of the Milky Way galaxy.
Image Credit: X-ray: NASA/UMass/D.Wang et al., IR: NASA/STScI
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The sun will never turn into a black hole. The sun is not a big enough star to make a black hole.

Answer 3

Wel, first of all it can't. The Sun is not massive enough to become a black hole. However, if we assume it could, and that the change was instant, we'd all be dead in a very short time. Earth would freeze in the absence of heat, and in the absence of light photosynthetic plant life would die very quickly. Since we depend for our food on plants, we would die too. Earth would become a frigid planet covered in ice. If we assume the Sun goes through the normal process of becoming a black hole, we wouldn't survive the event, as the Earth would be blasted with radiation from the exploding Sun.

However, the Earth would continue to orbit quite happily. A common misconception about black holes is that they have infinitely powerful suction and just pull everything in. They don't. They pull things in by their own gravity. Since gravity is dependent upon mass, and a black hole cannot have more mass than the star that created it, objects can continue to orbit a black hole quite well. The thing that makes black holes so dangerous is the relationship between gravity and radius. You can get a lot closer to the surface of a black hole than you can the original star, so you enter areas where the gravitational pull is much stronger.

Answer 4

Jason T is exactly correct. Good answer.

Just to briefly elaborate: For argument's sake, let's say that the Sun were to collapse into a one solar mass black hole. The point at which the black hole's gravity would be greater than the Sun's gravity would be where the Sun's surface formerly was. Once you're within one solar radius of the singularity, the black hole's gravity would start to become noticeably stronger than the gravity of the Sun. Of course, this is all moot; the Sun isn't massive enough to collapse into a black hole.

Answer 5

The solar is an intermediate mass famous guy or woman. meaning alongside the numerous stars born between 0.8 and eight photograph voltaic hundreds, it is going to die down as a white dwarf after the crimson substantial diploma. After being a planetary nebula on the top of the crimson substantial diploma the solar will reveil a nil.5 photograph voltaic mass white dwarf. To become a black hollow, a famous guy or woman would desire to be properly above 20 photograph voltaic hundreds while that's born supplied it has no close companion. that's by way of fact the greater great a famous guy or woman, the greater mass it is going to lose because it enters the final stages of its evolution. because it loses plenty mass, there is not sufficient mass to offer a black hollow remnant that's at minimum is approximately 3 photograph voltaic hundreds. sparkling skies!

Answer 6

well it wont turn into a black hole or explode. it will just grow briefly and then shrink.

and if it turned into a black hole the planets would all keep the same orbits. as long as your outside of the event horizon it would be the same as if the sun was still there.

Answer 7

well we burn up cuz the sun well expand and basically have us for lunch. that is if we dont kill ourself first. but if it becomes a black hole then we will really find out if it does lead to another universe

Answer 8

did you get this from doctor who?
actually, it can be true.
the sun's atmosphere will eventually become weaker and the sun will expand, burning our entire solar system. this may lead to a black hole. black holes are things that suck their solar systems in and in and in until there's nothing left.
anyway, this definetely won't happen till about the year 3 or 4 billion.

Answer 9

we will all die before it turns into a black hole couse we would of been frozen or killedd in the blast when the sun explodes BUT pple say we will collide into the sun before it explodes and turns into a black hole becouse every year we go closer and cloaser towards the sun !!!!!!! ( IM SCARED) !!!!

Answer 10

Its still got its half-life.