What if a rogue black hole entered the Solar System?

If a black hole like Cygnus X-1 were to stray near the Solar System, within a light-year or so, its gravity would cause chaos. The orbits of the outer planets and comets would be significantly and possibly disastrously altered, and this would in turn threaten the orbits of the inner planets and even the Sun.

What happens if a rogue planet entered our Solar System?

In most cases, a rogue planet entering our system would spin out again, possibly dragging one of our own native planets along with it. In roughly 40\% of cases, however, the rogue could be captured, either without perturbing the orbits of nearer planets or by booting one of our own planets out in the process.

What if our Sun became a black dwarf?

That is, if the Sun turned into a black dwarf instantly, which is unlikely even for our hypothetical scenario. From the main-sequence star it is now, the Sun would expand into a red giant, fade out to a white dwarf state, and only then cool down to become a black dwarf. At the red giant stage, it would bake the Earth.

Could a rogue planet join our Solar System?

Only in the last couple of years, rogue asteroids such as Oumuamua and rogue comets such as Borisov whizzed through our solar system. It is unlikely a rogue planet would pass by us that close up. But it’s not beyond the realms of probability. Earth has so far escaped banishment from the Sun.

What happens if a black hole swallows Earth?

Will Earth be swallowed by a black hole? Absolutely not. While a black hole does have an immense gravitational field, they are only “dangerous” if you get very close to them. It would get very dark of course and very cold, but the black hole’s gravity at our distance from it would not be a concern.

What would happen if Earth got kicked out of the solar system?

At this point, Earth’s oceans will be covered in several meters of ice. Any humans left living on the surface would be living on borrowed time. As Earth finally exited the solar system, it would then become a rogue planet, traveling the interstellar void in darkness and solitude.

What could cause the sun to turn black?

They appear when energy from deep inside the sun is being blocked or prevented from reaching the surface. It’s being blocked by a strong magnetic field. So, a sunspot is where a magnetic field gets so strong that it stops energy from inside the sun escaping to the surface.

What will a black dwarf become?

Black dwarfs are the very last stage of Sun-like stars. Currently in its main sequence hydrogen-burning phase, our Sun has about 4.5 billion years left before it enters the next stage of its life, puffing up to become a red giant.

Is there a rogue planet at the edge of our Solar System?

Unlike Earth, which is orbiting the Sun, there are billions of rogue planets roaming the Milky Way not bound to any host star. One of them has been spotted on the edge of our Solar System. What if this interstellar object swung through it?

What would happen if we had a rogue planet 13 times bigger?

Instead, our interstellar guest would be busy disturbing the orbits of all the planets in the Solar System. That’s because a rogue planet nearly 13 times bigger than Jupiter would have a huge gravitational impact, making other planet’s orbits, including Earth’s, more elliptical.

What would happen if an interstellar Planet invades our Solar System?

Once the interstellar planet invaded our Solar System, things could go very wrong. This rogue planet would likely be moving at hundreds of km per second. If we were unlucky enough to be on a collision course with this massive alien object, the Earth would be completely demolished. But don’t worry.

What would happen if a planet with Escape Velocity entered the Solar System?

Any additional planet (which by definition, entering the solar system) at escape velocity, would need to significantly affect the other planets to lose enough velocity to be able to be captured by the sun. Most likely it would send 1 or more planets into a chaotic orbit, ending with a planet being ejected.