Dyson Spheres - science-fiction or science-fact?
By: D. Vogt
A Dyson Sphere is a theoretical mega-structure constructed to collect much or even all of the solar radiation produced by a star, extract energy via solar panels or some similar technology, and then radiate lower-energy infrared radiation out into space. It was first described by...
By: D. Vogt
To the unaided human eye, the night sky appears dark because, from the perspective of an individual on the surface of the planet, "night" occurs when that part of the planet is facing away from the Sun. Our eyes evolved - or were designed, according...
Could there be life on other planets?
By: Slawomir Puk
Ever since man has been aware of worlds beyond our own, he has begun to wonder whether he is alone in the Universe. Do other races of creatures very different or perhaps quite similar to ourselves exist on distant planets? This desire to explore beyond...
By: D. Vogt
Assuming that the human race does not destroy itself through nuclear war, chemical pollution of the environment, global climate change, or a collapse of the food supply, the next likely natural threat to our species will probably come from outer space, in the form of...
Matter Plasma Photons Bose Einstien Condensate Liquid Crystal
By: John Traveler
Typically we think of matter in terms of three states, solid, liquid and gas. There are actually several other states of matter which have been discovered to exist. Photons are a type of matter, or perhaps more aptly stated quasi-matter which exhibit no detectable or...
The planet Vulcan
By: D. Vogt
Inside the orbit of planet Mercury, a little over one-third as far from the Sun as Earth, lies a region of space which appears to be entirely empty. This is an unusual feature of the inner solar system, most of which possesses a variety of...
By: D. Vogt
On the Earth, a dead body is quickly decomposed by bacteria, its remains reduced to bones and the material essentially recycled by nature. On other planets, however, there are no such bacteria - and so bodies do not decompose. Following our experiences leaving objects on...
A look at the latest theory on the formation of planets of our solar system
By: D. Vogt
According to current theory, the formation of the planets of our solar system occurred as a result of collisions between increasingly large bodies of matter within a flattened cloud of matter circling the early Sun, known as a protoplanetary disk. Essentially, through accretion, these collisions...
Planet made mostly of hydrogen and helium
By: D. Vogt
Much like the Sun itself (and the giant molecular cloud from which it formed), the outer gas giants - Jupiter, Saturn, Uranus, and Neptune - contain large proportions of hydrogen and helium gas. The two closest of these, Jupiter and Saturn, in fact are made...
Classifying the Universe: The story of Galaxy Zoo
By: D. Vogt
The Galaxy Zoo is a public science project intended to solicit amateur astronomers and members of the public to assist scientists in classifying types of galaxies around the universe. Since 2009, a second project, Galaxy Zoo 2, has been following up on results from the...

 

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