Astrophysics

Jupiter is farther away from the sun and has less gravitational pull from it than earth , if it went faster it would leave the solar system. and it is because it is the biggest planet on earth so it needs more force to move it around faster

Cosmic rays are continuously present in space - regardless of what day (or year) it is. Luckily, we are protected from cosmic rays on the surface of the Earth by the Earth's atmosphere and magnetic field. A small amount of comic rays can still reach the Earth's surface - particularly at higher altitudes.

In terms of astronomical objects, most black holes are quite small. The event horizons of stellar mass black holes, the most common type, would range from about 10 to 100 miles in diameter, which works out to a volume of 500 to 500,000 cubic miles. Compacting such a large mass into a comparatively tiny volume is precisely why black holes have such strong gravity.

The concept of black holes was first proposed by physicist John Michell in a 18th century paper, followed by additional work by Pierre-Simon Laplace. However, the term "black hole" was coined by physicist John Archibald Wheeler in 1967. The modern understanding and theory of black holes has been developed by many scientists, including Stephen Hawking and Kip Thorne.

In order to appreciate why a black hole forms, you need to be familiar with some basic concepts of mass and density. Mass is basically all the matter that makes up an individual object (protons, neutrons, other sub atomic particles etc). Density is the amount of space or volume that that matter takes up. for example, if you were to compare a pound of feathers to a pound of rocks, the pound of rocks will take up considerably less space as it is more dense. Now looking at a larger scale, we have a star. Stars are very dense, very large, and very heavy. As stars age they go through all of their hydrogen, and start to consume heavier elements such as helium, producing denser elements still in the process. Eventually all these heavy particles cause the stars to collapse in on itself, and if it large enough, produce a supernova, and if it is large enough still, to create a black hole. The creation of the black hole is a result of all that suns matter, being compressed into a tiny fraction of its previous size. Imagine instantly compressing an entire sky scraper into the size of a pin head, and that is close to the kind of density required to make a black hole. If you've ever noticed that a heavy, tiny object will rip through a garbage bag, the same concept holds true on the galactic level. In this case however, the garbage bag is the fabric of the universe itself. The star's collapse condensed so much matter into so small a space that it literally ripped a hole in the universe. (although the matter never leaves the universe, it is condensed into an impossibly small area called a singularity)

Galaxies can form different shapes including spiral, elliptical, and irregular. Spiral galaxies have a distinct spiral arm structure, elliptical galaxies are more rounded and oval-shaped, while irregular galaxies lack a defined shape.

Stephen Hawking's work on black holes has advanced our understanding of fundamental physics, leading to discoveries about the behavior of black holes and the nature of the universe. This knowledge has contributed to technological advancements and new insights into the fundamental laws of physics, which could have practical applications in the future. Additionally, Hawking's work inspires curiosity and innovation in scientific research and education worldwide.

The circumference around the Earth at different latitudes varies, from 40,075 km at the equator, to 26,291 km at 49° latitude, to 0km at the axis of rotation (i.e. the North and South poles). Thus, as the Earth spins around it's axis, different latitudes will cover different distances within the same time frame. And since speed (and velocity) are calculated by dividing distance by time, the speed (and velocity) will therefore decrease as you approach the poles.

We really can't "see" a black hole. What we "look" for is a high

concentration of x-ray emissions. Some of these places (possibly

black holes) are a cluster called M15 approx. 35,000 light years away.

The most popular one is Cygnus X-1 which is an eclipsing binary star

system approx. 10,000 light years away - the closest I know of.

Cosmic rays are high-energy radiation that can penetrate the Earth's atmosphere and can pose health risks to astronauts and airline crews who are exposed to them at high altitudes. Long-term exposure to cosmic rays can increase the risk of cancer and other radiation-related health issues. Adequate shielding and monitoring are essential to prevent health risks associated with cosmic rays.

The "why" of discovery might be more in the philosophical than the scientific realm; it's safe to assume in general terms that curiosity is a big motivating force behind discovery. In one sense, the reason behind black holes' discovery may have been somewhat indirect or even unintended; they appeared in solutions to Einstein's field equations from General Relativity, which is basically the theory of gravity that has proved to be most consistent with observation. Subsequently, other scientists stepped forward with mathematical solutions that described a consistent theoretical framework for their existence; thereafter, the hunt for observational evidence began. Study of radiation from Cygnus X-1 is generally believed to place it as the first black hole identified.

Note that quasars, now generally accepted as being powered by supermassive black holes, were discovered about a dozen years earlier, but their significance in relation to black holes not really understood and accepted until almost a decade after the compelling evidence from Cygnus.

The formula for the Schwarzchild radius of a black hole is given by

Rs = (M/Mo) x 3km.

Here Mo means the mass of the Sun.

For Earth, M/Mo = 0.000 003, that is, Earth has 0.000 003 x Mo.

Thus Earth's Schwarzchild radius is about 1 cm.

That means that if a giant squeezed Earth into a diameter less than 2cm,

it would be a black hole.

The event horizon of a black hole is directly related to its mass. For a 100 solar mass black hole, the event horizon radius would be about 295 kilometers (183 miles). This is the point of no return beyond which nothing, not even light, can escape the black hole's gravitational pull.

The event horizon of a black hole is estimated to be about 300 kilometers for a black hole with a mass of 100 times that of the sun. This is the point of no return where the gravitational pull is strong enough to prevent even light from escaping.

As the mass of the black hole grows greater and greater (from sucking in everything around it) it has an ever increasing gravitational force that pulls its outer-lying matter inward more and more and thus increases its density by decreasing its volume

The average travel distance from a black hole on Earth would depend on the distance to the nearest known black hole, which is typically thousands to millions of light years away. Traveling to a black hole would require advanced technology and is not currently feasible with our current understanding of physics.

In the scenario of the Big Rip, where dark energy causes the universe to expand at an increasing rate, black holes would eventually be torn apart as the fabric of space itself is stretched to its breaking point. This would result in the dissolution of the black holes into elementary particles.

The short answer is: Yes.

The more complete and maybe slightly ruder answer is: Even if there were only two objects in the universe, let's say a basketball and a CD, and even if they were on opposite sides of the universe, eventually, the two objects would collide. Now let's say that there's a teaspoon of black matter on one end of the universe and an electron on the other end. With something as infinitely dense as a black hole, the electron wouldn't have a chance. Things always gravitate towards each other, no matter the distance, the only variable with a possibility of change is time it takes.

During the gap in my resume, I took some time to focus on personal development, pursue further education or training, engage in volunteer work, or handle family responsibilities. I also used the time to explore new interests and skills that would enhance my career prospects upon my return to the workforce.

To many people, what is special about black holes is that they do not obey laws of physics, or gravity. The power is so great that it is hard to imagine. They literally bend space and time; they have such a big gravitational pull that the entire earth would be crushed to the size of a basketball. Think of all the things on our planet... minimized to the size of a basketball! Unfathomable, right? That's what most people think. Search "vsauce black holes" on youtube. He has got some pretty interesting things to say about them!

Imagine a big sheet. If you place a large object on it, it will bend. Imagine that the sheet is the space-time continuum, and the large object is a star. If, with our sheet model, you try to roll a marble past the object, it will at least curve its path, if not fall into the large object. The same applies to any object in space, even the photons of light. As they go past a star or other large object, they bend. I hope this helped.

The sun won't become a black hole simply because it lacks sufficient mass to make the transition. A black hole is formed when a giant star reaches a point where it collapses. There is a "threshold" or minimum amount of mass a star must have to become a candidate to become a black hole. Our neighborhood star is too "light" to make the cut.

The only way for our star to become a black hole is to randomly gain almost 10x its amount of matter. even then we need to wait another 5 billion years for it to go supernova, and even if that happened, there is still the chance it will become just a neutron star.

A black hole is a region in space where gravity is so strong that nothing, not even light, can escape. The "thing" inside a black hole is thought to be a singularity, a point of infinite density where the laws of physics as we currently understand them break down.

When you are near the event horizon, you would be close to the speed of light - from your own point of view. From the point of view of an outside observer, you would move slower and slower, and never quite reach the event horizon. This has to do with the queer distortion of space and time caused by the black hole.

There are many black holes in the universe .Scientists believe that there might be a black hole in the centre of our Milky Way galaxy which is about 25,000 light years from earth, and that that is why it rotates about its axis.