Astrophysics

The human race will probably end in some extinction event long before the demise of our plant or solar system. Eventually as a solar system nears a black hole, any planets within the solar system would be crushed and compacted, like so much garbage, and become part of the accretion disk - long before it eventually disappears across the threshold of the black hole's event horizon.

The concept of black holes was first theorized by physicist Karl Schwarzschild in 1916 based on Albert Einstein's theory of general relativity. However, the term "black hole" was coined by physicist John Archibald Wheeler in 1967.

No. When more matter falls into a black hole, it only makes it bigger and gives it even stronger gravity.

Primary cosmic rays generally appear to be fully ionized nuclei of very massive atoms.

Secondary cosmic rays are showers of various subatomic particles (e.g. muons) produced in collisions of primary cosmic rays with atomic nuclei of various gasses in earth's upper atmosphere.

That is correct. A star the size of our Sun will not form a black hole when it dies. Instead, it will likely become a white dwarf. Black holes are typically formed from the remnants of more massive stars.

The cosmic egg theory is a creation myth that suggests the universe began as an egg. The egg contains all the elements needed for the universe to form and expand, and it hatches to give birth to the cosmos. This concept is found in various mythologies and ancient cultures.

The Black Hole ride at Alton Towers closed in 2005 due to maintenance issues, costly upkeep, and declining popularity. The ride was also outdated compared to newer and more exciting attractions at the theme park.

This question can be answered differently deending on the part of the black hole that you are talking about and some parts will change based on the mass of the star that made it. Basically the black hole can be separated into two parts: the singularity and the event horizon. The event horizon is the area of the black hole in which nothing, not even light or time, can escape. The event horizon is a gravitational boundary and its size depends on the mass of the black hole. The singularity is the only part that actually exists as matter and it is often though of as having a volume of zero unless you are reffering to quantum mechanics in which it has a volume smaller than the volume of an atomic nucleus.

After a black hole forms, it continues to exist in space, exerting a strong gravitational pull on surrounding matter. Anything that gets too close to a black hole, including light, cannot escape its gravitational grasp and is consumed. Black holes can continue to grow in size by absorbing matter and merging with other black holes.

Although predicted theoretically long before, credit for discovery of the first strong black hole candidate through astronomical observation in the x-ray binary system of Cygnus X-1 goes to Bolton, Murdin, and Webster in 1972.

biosphere. It is the global ecological system integrating all living beings and their interactions with each other and their environments.

Stellar dust refers to the microscopic particles of matter found in space, which can include elements like carbon, silicon, and oxygen. These particles are remnants of dying stars and play a crucial role in the formation of new stars, planets, and other celestial bodies in the universe.

Mirrors are used in the bathroom, in the hallway, in and on your motor vehicle, and up on the stage for magic acts. There are also parabolic mirrors that are used for looking at the stars by collecting and concentrating starlight.

Chlorophyll is what makes plant life - and most of the landmass on Earth - appear green.

John Archibald Wheeler is the American physicist who pioneered the theory of black holes in 1939. He coined the term "black hole" in 1967 and made significant contributions to our understanding of these phenomena.

When an observer points his radio telescope onto an area in the skies which is supposed to contain a black hole, received signal will be carrying information mostly about X-rays (part of spectrum beyond visible violet color) which are emitted when that black hole consumes matter.

Yes. There is a supermassive black hole at the center of the galaxy and a number of stellar mass black holes through the rest of it.

One that is fairly famous is Sagittarius A* - the supermassive black hole at the center of our Milky Way, about 26,000 light-years from here, and with a mass of about 4 million solar masses. For additional black holes, check the Wikipedia article "List of black holes".

Yes, plasma is a state of matter composed of ionized particles, such as ions and free electrons. In interstellar space, plasma is abundant due to the high temperatures and energy present in these regions. Plasma plays a key role in the dynamics and interactions within the interstellar medium.

They are black. This is because the are merely dense balls of matter from which light can not escape. Though there is a unproved process called that goes by the name of hawking radiation that leads to electromagnetic radiation(light) being emmited from black holes. See do black holes die for more details.

While it is impossible to actually SEE a black hole, scientists have detected the presence of a great number of black holes in the universe. It is very likely that there is a supermassive black hole at the center of almost all large galaxies including the Milky Way.

All massive bodies in the solar system are in motion, even the Sun. The planets occupy elliptical paths with a common center of gravity with each other and the Sun (barycenter) at one of the foci of the ellipse, the path being called an orbit; the motion of the planets in the orbit is counterclockwise as seen from above the Earth's north pole looking down at the orbits and per Kepler's laws at its closest approach to the sun will move slightly faster and at greater distance moves slightly slower - this effect also consistent with the length of the orbital period or year, increasing distance resulting in longer years. The axis of the ellipse also precesses or advances slightly with each orbit (per predictions of Einstein's General Relativity). Other bodies not in orbit directly around the Sun may be in orbit around a planet and orbit their primary while the latter is in solar orbit. Some objects such as comets have highly elongated orbital paths. All objects also have some intrinsic angular momentum, rotating on their own axis (day). All objects interact and are drawn by other objects to a greater or lesser degree mediated by the force of gravitational pull proportional to mass and inversely proportional to the square of the distance; these effects creating irregularities in their orbits (perturbations) some of which result in stable harmonics known as orbit resonance. Spin-orbital resonance may also arise from tidal force and affect the relationship between rotational and orbital periods.

There are other types of motion but these are some of the basics.

I am a computer program and do not have a physical presence, so I do not reside on this planet.

By using various wavelengths of light, such as infrared or radio waves, we can see through the interstellar medium. Different wavelengths can penetrate the dust and gas in space, allowing us to observe objects that may be hidden in visible light. Telescopes and instruments that are sensitive to these wavelengths help in studying the interstellar medium.