Colorful nebula spotted in distant star cluster
By: D. Vogt
In January 2009, scientists announced that they had discovered a new planetary nebula using the Hubble Space Telescope. The new NGC 2818 (pending a more imaginative name) showed a colourful mix of red, green and blue gas clouds forming in the Pyxis (Compass) constellation, thousands...
What are open star clusters
By: D. Vogt
An open star cluster is a large group of related stars, which hold themselves together through their overlapping gravitational fields. Unlike the so-called globular star clusters, however, the stars in an open star cluster have begun to drift apart; they are still being held loosely...
What is clinical chemistry?
By: Virginia Gaces
Clinical chemistry is defined in layman’s language as the study of the substance in biological fluids most specifically blood, the methods and principles of determination, the intrinsic and extrinsic precautions, the normal levels and the clinical significance of abnormal values. It belongs to...
Time travel might really be possible
By: Nish Laverz
You could say that we humans are already time travelers.Traveling on our life journey through what we perceive as time for our birth to our death. Experiencing events ans they happen day by day. But what if we could do much more than travel...
Introduction to vectors in physics
By: Jeffrey Graf
A vector is a mathematical object that can be used to represent a physical or mathematical property. By object, I mean a construct that contains two or more components. A vector always has a magnitude and a direction. Vectors are useful for representing forces, velocities...
By: D. Vogt
When NASA's Juno spacecraft reaches Jupiter in several years' time, it will be only the second probe designed mainly to explore Jupiter. The first, Galileo, arrived in the 1990s and was destroyed when it was deliberately crashed into Jupiter's atmosphere more than a decade ago...
Exploring the composition of air
By: D. Vogt
Air refers to the mixture of gases and water vapour which make up the atmosphere of the Earth. Note that this particular balance is specific to Earth - other planets have other atmospheres, and therefore different air. For example, the atmosphere of Mars is 95%...
Element facts: Neon
By: D. Vogt
Neon, like argon and helium, is an inert gas or noble gas: that is, it is a gas with no smell and no colour which does not react with other chemicals under normal conditions outside the laboratory. Neon's chemical symbol is "Ne," and it...
Early space telescopes and the rise of Hubble
By: Graham Brown - 565544
The Einstein Observatory, also known as HEAO-2, was launched in 1978 and over its three years of operation, the observatory made many significant contributions to the field of X-ray astronomy. Light classified as X-rays is characterized by a wavelength between 0.01 and 10 nanometers...
By: Tim White - 240468
Often there are a great many snags involved in a search of this nature. Firstly, it`s been quite erroneous to assume we would be contacted directly by intelligent society outside our influence. It would be quite obvious that dealing with us as a whole would...

 

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