Scientific Facts About Space and Its Study - Essay Example

The human eye is responsive to an incredibly small range of wavelengths known as visible light. Though, the majority objects in the universe radiate at wavelengths dissimilar to the visible one. Therefore Astronomers utilize telescopes with recognition accessories that are receptive to other wavelengths. This enables them to learn objects that release this radiation. Astronomers can examine much about stars, for example, their hotness and composition, from the spectra of their light.Advanced Computer methodologies are there which embed the light into arbitrary colors that are perceptible.

The Hubble Space Telescope is intelligent to determine wavelengths starting from 0.1150 to 2 micrometers other than visible region. Ions are charged particles whereas atoms are neutral. When an atom loses or gains an electron it is said to be ion. For example, sodium metal in a neutral state is composed of atoms whereas sodium in sodium chloride is ion. The two ways to excite an atom are through heat and the other is through light. Both ways provide energy to atom above the activation level such that atoms become excited.

Hot objects release more of their light at short wavelengths. This is because of the reason that hot bodies have blue intensity peaks and thus the wavelength for blue color is relatively smaller whilst the cooler objects have red intensity peaks means their wavelength is relatively long due to the color of the peak. The spectrum produced from white light comprises of all colors is termed as a continuous spectrum. Continuous spectra are formed by all radiant solids, liquids, and gases under high pressure.

A gas at low pressure does not make a continuous spectrum but forms a line spectrum explicated as individual lines at definite frequencies of the gas. If the gas is manipulated luminescent by warmth or electric discharge, the consequential spectrum is a bright-line, or emission, spectrum, consisting of a series of bright lines against a dark background. A dark-line or absorption spectrum is the reciprocal of a bright-line spectrum; it is formed when white light comprising all frequencies transcends through a gas not hot sufficient to be radiant.