As humanity, we continue to increase our knowledge about our planet and the universe every day. This is the basis of our development. our endless curiosity lies.

Here is a website where those who have questions about the universe, even if they are not scientists, get answers directly from astronomers, with the aim of satisfying our curiosity. led by researchers at Cornell University We have collected 5 interesting questions and answers from readers of that site.

1. What happens when a supermassive black hole approaches our planet?

If you consider that the mass of this type of black hole is equal to one million solar masses, if it approaches us a thousand light years, our solar system An orbit around the Milky Way We are starting to notice some changes taking place.

When the distance gets smaller and the distance is reduced to a few hundred light years, we see that the orbits of all the planets in the solar system change. The world is also affected by this change and in a short time either we freeze completely or we evaporate and perish.

What determines this is our approach to or away from the sun after the orbital change. In the next or We go to the sun and perish or ejected from the solar system and orbiting the new black hole.

The third option is direct that we are being pulled into the black hole. If this third case happens, we’ll be shattered by the spaghetti effect as we approach the black hole.

2. How does your weight change as you approach the center of the earth?

Contrary to popular belief, it gradually decreases. It is a well-known fact that your weight decreases the farther you are from the Earth, so when the opposite happens and you get closer to the center, the weight is expected to increase. But distance from the center of gravity isn’t the only thing that determines weight; The masses of the substances between you and the center are also effective.

In this situation, when you get to the center point, since your distance is zero, the diameter of the distance you are at becomes zero, and therefore there is no mass between you and the center point. This resets the gravity effect. That’s why your weight disappears.

3. Is it possible to buy stars?

The answer to this interesting question is “no”. You cannot buy and name stars. The only organization authorized to name stars is the International Astronomical Union. But nowadays there are scam companies claiming to sell stars and people who lose their money believing them.

Even these people by communicating with the institutions involved in space exploration They ask for a description of the place in the sky and say that they have bought a star, but do not know where to find it.

4. What is a White Hole?

Most people know about a black hole, but not many people have heard of a white hole. In white holes, which are the opposite of black holes; substances do not enter, on the contrary, it is thrown out. In addition, matter cannot come out of black holes and matter cannot enter through white holes.

But most scientists believe that white holes it is physically impossible and therefore thinks it cannot exist.

5. What is the universe expanding into?

This is one of the crucial questions about the universe. If our universe is expanding all the time, what is in the areas where it is expanding? What is it expanding into? If we took a step outside the confines of the universe, what would we see in this area where it would soon expand?

Dave Rothstein replied, “What we think of as the expansion of the universe is really like the spaces between galaxies are being pulled from all sides. consists of yawning. Since our universe is infinitely large, it remains infinitely large even if the texture is stretched; so the size doesn’t actually change at all, so it doesn’t really expand.

But if our universe isn’t infinitely large, then it’s possible there’s an area we’re expanding into. However, since we haven’t had a chance to observe this, It is also impossible for us to answer scientifically.”