Astronomy

Cetus is a constellation in the sky, so its distance is not measured in terms of physical distance like we're used to here on Earth. It is located at a celestial coordinate in the sky, and is one of the nearest constellations to us in the Milky Way galaxy.

The four moons of saturn were discovered by different people at different times and not by any single individual. The first moon is Titan, which was discovered by Dutch astronomer Christiaan Huygens on March 25, 1655. The secondmoon was named Dione, which was discovered by Italian/French astrologer Giovanni Cassini in 1684. The third moon is called Prometheus, which was named after a powerful deity in Greek mythology. Stewart A. Collins discovered it sometime in October 1980. The fourth moon is named Telesto, which was named again after a Greek mythological character. On April 8, 1980, astronomers named John W. Fountain, Stephen M. Larson, Harold J. Reitsema and Bradford A. Smith discovered this moon.

Stars twinkle due to the Earth's atmosphere and its turbulence, which causes the light from stars to refract and flicker as it passes through. The twinkling effect is not related to the presence of oxygen specifically, so stars can still appear to twinkle in the absence of oxygen.

It would be like living on a death trap of crap.

it would be like living with no gravity and you can float in space like... FOREVER. if you want to stop you have to grab on something like spaceship, moon,etc.

Astronomers can predict the return of comets like Hale-Bopp by using mathematical models that trace the comet's orbit based on its previous trajectory and gravitational interactions with other celestial bodies. By studying the comet's orbit, scientists can estimate when Hale-Bopp will make its next appearance near Earth.

To the best of our knowledge, the planet Uranus is entirely uninhabited; no humans or animals live there. It is essentially a huge, cold ball of gas. No organism that we know of would be capable of living there.

All stars are in a balance between gravity crushing them in, and the pressure caused by nuclear fusion at the star's core. And the bigger the star, the greater the amount of energy generated.

At some point, the pressure of the stellar fusion is SO powerful that the outer layers of the star are blasted off into space. That point, we believe, is at about 150 solar masses.

The sun's composition is dominated by two primary chemical elements, which together account for more than 98 percent of its mass. Hydrogen, the lightest and most abundant element in the universe, makes up approximately 74 percent of the sun's mass. Helium, the second lightest element, comprises about 24 percent of the sun's mass, bringing the total to 98 percent. The remaining 2 percent consists of various heavier elements, including oxygen, carbon, nitrogen, and iron, among others.

The distance from home plate to the outfield fence at Cooperstown All-Star Village varies by field. Field 1 has a distance of 205 feet to the left field fence, 240 feet to the center field fence, and 200 feet to the right field fence. Field 2 has a distance of 196 feet to the left field fence, 226 feet to the center field fence, and 172 feet to the right field fence.

The link to purchase and download Bisque's TheSkyX software for Mac is at the link below. The price is $329.00.

That's $329.00 more than the free open-source program Stellarium, also available at the link below.

The sunlight that reaches the Earth's surface consists of a range of wavelengths, from infrared to ultraviolet. Visible light, which is the part of the spectrum that humans can see, makes up a significant portion of the sunlight that reaches us.

Edwin Hubble was a renowned astronomer who was born in Illinois in 1900. He received his Bachelor's Degree from the University of Chicago and his Master's Degree from Oxford.

Yes, falling stars (meteors) can still be visible during the daytime. However, they are harder to see because of the brightness of the sun and the scattering of light in the atmosphere. It is much more common to observe meteors at night when the sky is darker.

The universe began at what is called the Planck Era when time was smallest unit of time which is 1.35 x's 10 -43 of 1 second and lasted until time was 10 -36 second so Planck era was such a short amount of time 1 /1000000000000000000000000000000000000 of 1 second that light only traveled about 1 /100000000000000000000000000000 of 1 foot during Planck Era . At 1.35 x's 10 -43 second temperature was 179999999999999999999999999999540.6 degrees Fahrenheit is same as 179,000,000 trillion trillion is the same as 179 million X'S 1 trillion and result X'S 1 trillion degrees F. At time 10 -36 second the temperature was 1799999999999999999999999540.6 degrees F is same as 1799 x's 1 trillion and result x's 1 trillion degrees F. There are 5 different "eras" which take place in the first 1/millionth of a second after the universe began. I won't explain them here, look them up on you tube for more information about individual 5 eras that make up total of first 1/million of a second after the universe began. During the Planck Era light only travels about 1 / 1000000000000000000000000000000000000 of 1 foot because it is such a short amount of time.

The Inflationary period of big bang universe began at 100 billion x's trillion x' trillion of 1 second after universe began. During inflationary period universe expanded from less than size of 1 atom (microscopic) to at least 0.1691201334439385028 of 1 light year in diameter but could be even bigger (this is same as 994193907579.7344 miles diameter (1 trillion miles) This expansion period began sometime between 10 -35 to 10 -32 second and ended at 10 -12 second. The temperature at time big bang began was the same as I wrote above at time 10 -36 of 1 second. Actual speed of big bang was exactly 3579098067287043840000000000.0000000357909806728704384 miles per hour without partial mile is written as 3579098067287043840000000000 miles per hour and ending size was minimum of 0.1691201334439385028 of 1 light year in diameter.

At time 10 -12 second (written 0.000000000001 second) is same as 1 trillionth of a second after universe began the temperature was 1799999999999540.6 degrees F. At time 10 -6 second (written 0.000001 second) is 1 millionth of a second after universe began temperature was 17999999999540.6 degrees F (Fahrenheit). All this above is the speed of space between actual mass. Mass is material that existed during the big bang and later formed current galaxies. The mass never moved faster than the speed of light (during big bang) but space between the mass did. Today we still have space between mass (today mass has formed galaxies) that existed during big bang. The difference in average expansion (space expands like baked cookie doubling in size about one time per 9.7 billion years and continually in future too). Universe today is 13.8 billion light years old but space between mass (galaxies) is at least 85 billion light years diameter today (due to faster speed of space between galaxies than mass itself. Galaxies themselves (mass) never expand faster than speed of light.

Earth

or

Terra (Latin name)

Within the nine old planets, 3 of them have retrograde rotation: rotate clockwise (westward). They are Venus, Uranus and Pluto.

Mercury, Earth, Mars, Jupiter, Saturn and Neptune have direct rotation: rotate anti-clockwise (eastward).

All the nine planets revolve around the sun eastward or anti clockwise.

Muhammad Abubakar Farooqui is writing his new book which is named as "The Universe - Search of Life". The detailed book contains all data, history and future of Man in universe. Topics of life on planets, exoplanets and the super earths like "Gliese 581 G" are detailed lit. Contains the basis of Astronomy and a detailed view of "Astrogeology" and NASA Developments. The best book on astronomy for basic researcher will be available in the market till next year. Becoming pride of his country, first Pakistani child under 13 to write such a book on astronomy. Details, visit his site

abubakarfarooqui.webs.com

This is not currently known. There does exist some asymmetry between matter and antimatter - meaning that they are not exact opposites in all aspects - but this asymmetry is not enough to explain why matter exists.

Stars with a core temperature in excess of 20 million K likely have hydrogen fusion occurring in their cores, where hydrogen atoms are fused into helium through the proton-proton chain reaction.

Polaris (the North star - Alpha Ursae Minoris) is a triple star system, but appears to us as a single star.

Alpha Centauri is also another triple star system.

And there are many more.

Mercury and Venus would likely have the most extreme temperature differences between their day and night sides due to their lack of atmosphere and proximity to the Sun. Additionally, tidally-locked exoplanets, where one side always faces their star, could also experience vast temperature variations depending on their distance from the star.

The temperature of an expanding star can vary depending on its size and stage of evolution. Generally, as a star expands, its surface temperature decreases due to the increased surface area over which the energy is distributed. However, the core temperature of the star can increase as it undergoes fusion reactions.

No, the atmospheres of the four largest planets in our solar system (Jupiter, Saturn, Uranus, and Neptune) are primarily composed of hydrogen, helium, and other gases unsuitable for Earth-type life forms. The extreme temperatures, pressures, and lack of solid surfaces on these gas giants make them inhospitable for life as we know it.