Astrophysics

An astrophysicist would be somebody involved in the branch of astronomy dealing with physical laws of the universe, and the properties of celestial objects, such as stars, planets, galaxies, etc. Astrophysics encompasses some of the most interesting questions in science; which include the origin and fate of the universe, the properties of dark matter, dark energy, the nature of gravity, time travel, black holes, wormholes, and other phenomena.

A black hole can be formed by the death of a massive star. When such a star has exhausted the internal thermonuclear fuels in its core at the end of its life, the core becomes unstable and gravitationally collapses inward upon itself, and the star's outer layers are blown away.

The inner planets are called "rocky" or terrestrial, a name which underscores the contrast with the outer gas giant planets.

By definition all planets in the solar system orbit the Sun; also, in order to be a planet they have to be large enough to achieve their rounded shapes.

The most common star in our solar system is the Sun, with a total count of one (1). There are no other stars inside the solar system.

What is arguably the best evidence for there being a black hole at the center of the Milky Way is the movement of some stars near the center of our galaxy. These stars are orbiting around a massive object that emits no visible radiation that we can detect. A black hole would "fill the bill" here. It would explain the movement of those stars, and the "invisibility" demonstrated by the object with the massive gravity strongly suggests a black hole.

The planet that has surface winds reaching speeds of up to 1500 mph is Neptune. These extreme winds are some of the fastest recorded in the solar system and are often observed in the planet's upper atmosphere.

Most stars in the universe are main sequence stars. These stars are in a stable phase of their life cycle where they generate energy through nuclear fusion in their cores. The Sun is a main sequence star.

You would weigh the most on Jupiter because it is the largest planet in our solar system and has a very strong gravitational force due to its size and mass. This strong gravitational pull would make you weigh more on Jupiter compared to any other planet in our solar system.

Spaghettification. This is when an object goes near a massive body such as a black hole gets pulled apart. See the links below.

(Humor aside, there really isn't a specific term for such an event, other than "going near a black hole.")

The reflection of a celestial body is called "albedo," which is a measure of how much light is reflected by a surface. A high albedo means that the surface reflects a lot of light, while a low albedo means that the surface absorbs more light. Albedo can vary depending on the composition and texture of the celestial body's surface.

A type of weak radiation thought to be present due to quantum effects near a black hole's event horizon is often called Hawking radiation, after the scientist who proposed it, Professor Stephen Hawking.

Clark Kent's boss at the Daily Planet was Perry White. In earlier Superman comics, Clark and Lois worked for editor George Taylor at the Daily Star.

Black holes do indeed have a central singularity of infinite density and zero volume where all mass in concentrated; however, the term "solid" describes a state of matter which definition may defy the unclearly described and poorly understood state of matter in the singularity.

Despite the apt metaphor of being a "hole" into which matter and energy can disappear never to return, black holes are not strictly speaking a hole in the common sense; in fact, it might be better described as an unusual region of spacetime answering to infinite spatial or temporal curvature as described by Einstein's General Relativity than it would either as a hole or as a material object.

Saturn would be the most likely planet to "sink" in water, due to its low density and composition mostly of gases. However, no planet in our solar system could physically sink in water, as they are significantly larger and more massive than any body of water.

In our solar system the outermost planet 'til March 1999 was considered the same as the outermost planet after March 1999 - it was Pluto. In 2006, the IAU reclassified Pluto as a minor or dwarf planet and no longer a true planet - this demotion meaning Neptune would thereafter be considered the outermost planet in our solar system.

It is of course possible there is a planet out there not yet discovered, which is in solar orbit, and large enough, in which case its distance might qualify it as 'outermost'.

No, there is only one star in our solar system, The Sun (Sol).

1. Mars is the fourth planet from the Sun and the second smallest planet in our solar system.
2. Mercury is the smallest and innermost planet in our solar system, orbiting closest to the Sun.

On Earth, the intensity of cosmic rays increases with altitude until a maximum where the atmosphere ends; this reflects the atmosphere's shielding effect. Outside Earth cosmic rays intensity is greatest at their source or origin, which seems to be mostly outside the solar system. Although some uncertainty remains, they are believed to be created by supernovae explosions, and possibly by the relativistic jets of quasars or active galactic nuclei.

No, it takes something much larger than any planet ever discovered or theorized. Black holes come from collapsed giant stars. A collpsed star that has turned into a black hole could "swallow" a planet. Thus the mass of the planet would become part of the mass and energy of the black hole.

The Sun provides the majority of the heat and light to our solar system. This is due to nuclear fusion reactions happening in its core that produce energy in the form of heat and light.

The sun's activity, such as sunspots and solar flares, follows an 11-year cycle known as the solar cycle. This can affect space weather and phenomena such as the auroras on Earth, as well as impact satellite communications and power grids.

The distances between the stars are so great that no one can travel to another star in his or her lifetime. It may not be for thousands or tens of thousands of years, but I am very confident that we or the creatures that evolve from us will one day travel to other stars.

either mars or moon. i think its mars, because Indra is son of dyayus pita (usually translatted as sky) and prithvi (earth). we know mars was born of the earth from puranic sloka (dharani garbha sambhootam, vidyut kanti....), so Indra must mean mars. Rg Veda also praises Indra to have drunk soma often and it gave him strength to do good things for earth - bring water to earth and make sun rise & set everyday. Soma is another name-call for Moon, and using thunder to destroy a dark canopy and release the ice due to heat as water which fell to earth sounds more like a primitive planetesimal (mars) interacting with a infant earth, close in orbit with modern day moon (& accordingly drinking soma) and giving the earth a push from wherever it was previously into an orbit around sun (hence making sun rise & set everyday). there are more evidences in rg veda, for later - dwastha@yahoo.com

Oberon is the outermost major moon of the planet Uranus.