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A TNO or Trans Neptunian object is any minor planet orbiting the sun in our solar system beyond Neptune, or at a distance which is more than Neptune’s (on average). Known divisions of bodies beyond Neptune which are still part of the solar system are the Kuiper belt, the scattered disk and the Oort cloud. […]
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Technically, thermal radiation is the heat emitted by anything that is not at absolute zero; absolute zero being the coldest possible temperature where all activity at molecular level stops (also called zero K or roughly -273 degrees C and -460 degrees F). Examples of thermal radiation are sunlight and the light from an incandescent bulb.
An eyepiece, or ocular lens, is basically the lens through which one views in optical devices such as telescopes and microscopes. They are attached to such instruments, and used to magnify whatever object is pointed at.
The term singularity in science is defined as the point in space where some properties of the said point in space is infinite. There are many occurrences in space that has the capacity of singularity. One classic example of this concept is the black hole. A black hole is the result of a dead star
General relativity is what Albert Einstein theorized in 1916, which describes that gravitation also affects the shape of space and flow of time. It proposed that the bigger the matter, the more it causes the space to curve.
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When people talk about astronomy, especially when it comes to aging systems, stars or other concepts that relate with age, the term sidereal year is mentioned. This term is defined in science as the measure of time for a planet, star constellation or celestial body to complete its orbit around the sun, in terms of
An Electron is the negatively charged subatomic particle. Electrons can be free, like those travelling in an electric current. They can also be bound to an elemental atom. The symbol generally used for this particle is ?e-.? It is virtually weightless when compared to the protons and neutrons. Studies have shown that its weight is
Do you know that the earth is part of the solar system which is part of the Milky Way galaxy within the Local Group that is in turn one of the components of the Virgo Supercluster? Amazing indeed, as everything in the universe is always a tiny component of a larger association of heavenly bodies,
There are many galaxies far away, and also near the solar system. Many are dwarves or even huge galaxies that stretch for miles, but one stands out and is considered as a major galaxy that has been studied from time to time, and this none other than the Small Magellanic Cloud.
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The Electron Volt (eV) is a unit of measuring energy. Remember that for electrons to move, there must be a potential difference or voltage. The electron volt refers to the gained kinetic energy of a single free electron, as it accelerates in a 1-volt potential difference. One eV is approximately 1.602?10?19 J. For astrophysics, the
