Astronomy

Stars are gigantic spheres of nucleosynthesis. They start off as hydrogen mainly but gradually fill up with heavier elements as they synthesise them. Stars form from nebulae, vast clouds of hydrogen. Pockets of gas in the nebulae ball into spheres by gravity. Through tunnelling (relies on the Uncertainty Priciple of quantum theory), hydrogen nuclei fuse to form helium nuclei and this reaction gives of heat. Millions upon millions of these reactions heat up the star. Hydrogen is converted in this way (nucleosynthetically) into...

This is a more complex answer than most might think. Climate (long term weather) and climate change are a basic factor of 3 main things Obliquity (axial tilt) Precession Rotation (elliptical eccentricity,) They are also referred to as Milankovitch cycles named for the Serbian scientist that theorized and later proved his idea of cyclical climate changes with 26k 41k and 100k events which later were mathematically shown to coincide almost exactly with earths climate history. The...

Answer "Aldorande" is the pronunciation of a star called Alderaan. Alderaan is the disused term for the stars Procyon and Gomesia in the constellation of Canis Minor. So, your answer is the Canis Minor constellation. Even though the name Alderaan is no longer used. Alderaan is also a fictional planet in the Star Wars movies. Answer Alderaan is pronounced Aldorande in the Star Wars movies and is a fictional planet. The star Alderaan is an old and disused term for the stars Procyon and Gomeisa in...

Cetus is the neighbour of Pisces. Aquarius and Aries.

The advantages of space satellites are: - Communication. Satellites have greatly improved communication, not just nationally, but internationally. Nowadays a call can be placed from the United Kingdom to China in a matter of seconds. Satellites also enable us to have mobile phones, without satellites, mobile phones are just a useless plastic square with numbers on it. Satellites have also improved military communications (see below). - Military and Security. Military-controlled spy satellites are constantly scanning and keeping an eye on hostile territories around the globe, providing images, video...

It takes millions of years for free floating diatomic molecules of hydrogen gas in space to congregate in sufficient quantity to produce a protostar (the first stage). The collapse of the gas usually requires some event, such as a collision between gaseous nebula which tend to be inelastic, or the shockwave from a supernova, or the wake of a black hole. Any of these events can nudge gravity to coalesce the gas into a "brown dwarf." When a brown dwarf has gained...

The moon completes one orbital revolution around the earth every 27.32 days, and displays a complete cycle of "phases" every 29.53 days. (Those are both rounded numbers.) ...

"Natural Satellites" Circle around larger, more massive objects (the Earth is technically a satellite of the Sun, and the Moon is a natural satellite of the Earth). Artificial Satellites Satellites orbit the Earth to provide links between places on the planet (TV, phone, internet) and to study the Earth and space. They provide information to the military, to weather forecasting, to geologists, and more. The orbiting space telescopes examine other planets and stars. Satellites orbit in a variety of directions, but most circle west-tp-east at various...

It is most likely to be the stars jet trail of burned out gas which then began to orbit the star itself because of its immense mass. ...

The Earth's gravitational attraction prevents gasses from escaping into outer space. ...

Because Earth is turning. It's only ever night time on one side of the Earth, the side not facing the sun. ...

Constellations are used as a way of mapping surrounding space so that's its easier for us to find certain planets/stars alot easier. Also in history these constellations have being used for astrology which is suposerly a way of reading ones future, hope this helps ...

Redshift and blueshift refer to a change in frequency of light we receive from distant objects (stars, galaxies, etc.) The light can turn different colors, and purple is one of them. However, no matter what the color the light changes to, the technical term is always "redshift" if the frequency of the light decreases (normally indicating that the object is moving away from us), and "blueshift" if it increases (normally indicating that the object is moving towards us). Blue shift and purple shift...

Four Seasons, Winter. Seasons are a subdivision of a year. The Earth's rotation axis is tilted by 23.4392794383 degrees with respect to the, at different times of a variation in the 180 - 270 deg (mn), longitudes 270 - 360 deg (Winter). The Sun true longitude (Lsun) is derived from Sun mean longitude (Lmean) and Earth mean anomaly (ME). For any input through many Sun true Longitude (Lsun) for the input year 1013 : Year = 2013, Start : UT year =...

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We can come up with only three: -- hyperbolic -- parabolic -- elliptical (including circular, a special case of elliptical) Circles, ellipses, parabolas and hyperbolas are all conic sections, the intersection of a plane with a right-circular cone. Orbitals in quantum chemistry have shapes that are spheres for s-orbitals, dumbbells for p-orbitals, and different types of d-orbital are either pairs of crossed dumbbells, or a dumbbell with a central collar. f-orbitals have yet more complex shapes, but they are not usually considered in textbooks. In physics, p and...

Update The moon also provides up with some light at night-time because the sun reflects off the moon. If there was no moon then it would be very difficult to see at night without the assistance of fire or electricity. Answer The moon plays a very important role to life on Earth as we know it. Due to it's size, it keeps the Earth stable and does not tumble. Mercury, Venus, and Mars tumble because Mercury & Venus have no moon, and Mars' two...

Answer The temperature of the Moon's night is -173.3 degrees C. (-280 degrees Fahrenheit). ...

Clearly, we (Earth) can't live without the Sun. It gives us energy/ electricity and warmth. Plants need the Sun for photosynthesis, we need it as light during the day. The Sun plays a major role in our lives. The importance of sun in our solar system is that if we don't have the sun then there will be no life on Earth since it is too cold for life to grow, and the Earth will be a frozen chunk of ice. ...

Yes.

"Life as we know it" is not possible on the Moon because the Moon has no atmosphere. When people go to live on the Moon, we will need to provide pressurized habitats in which we can live without a pressure suit. We will probably also have to live underground, since the lack of atmosphere also means that there is no protection from the damaging UV radiation from the Sun. The Moon also lacks a strong magnetosphere to protect life from bombardment by...

Mainly, a high mass star has a very short lifetime, because it uses its fuel in a much more wasteful manner: due to its higher mass, it will get much hotter, and the fusion will occur much faster. ...

a massive star becomes red super giant which later results in a supernova explosion. after processes it either becomes a black hole or neutron star ...

The main types of galaxies are Spiral galaxies, Elliptical galaxies, Lenticular galaxies, and Irregular galaxies. Spiral (and Barred-Spiral) galaxies are shaped like pinwheels, with arms that spiral outward. The barred spiral has an elongated bar shape across the middle. Examples of the spiral are our own Milky Way and Andromeda. A barred spiral is the Sculptor Galaxy. Elliptical galaxies look like flattened spheres rather than the thinner spiral form. They are observed to have comparatively little interstellar matter. An example is the Maffei 1 galaxy. Lenticular...

A pattern of stars which is not an official constellation (although often they are part of constellations) is called an asterism. The Big Dipper is an asterism; it is actually part of the constellation Ursa Major, "The Large Bear". Another asterism is the Summer Triangle, three bright stars which are actually part of three different constellations. ...