Astronomy

Definition of exoplanet

An exoplanet is, according to the definition endorsed by the Royal Spanish Academy (RAE), a planet that is located outside the solar system, that is, the planetary system that includes, for example, the Earth and in whose central part the sun is located. Astronomy experts point out that, despite not […]

Definition of NASA

NASA is the United States government agency dedicated to promoting space exploration and aeronautical research. Its founding took place in 1958 by decision of President Dwight Eisenhower. NASA is the acronym for National Aeronautics and Space Administration. The body has […]

Definition of doppler effect

The Doppler effect is the phenomenon that occurs when the frequency of a wave that is perceived registers a change because the source or the receiver itself is in motion. The name pays tribute to the Austrian physicist and mathematician Christian Andreas Doppler (1803-1853), who discovered this reality. It is important to indicate that […]

Definition of white dwarf

White dwarf is the expression used in Spanish to refer to the stellar remnant that emerged from a star of mass comparable to that of the Sun that, after exhausting its nuclear fuel, does not undergo thermonuclear reactions in its core and presents a weak luminosity. . By running out of energy sources capable […]

Definition of expansion of the universe

The expansion of the universe is a process that has developed since its origins and that involves a progressive increase in the distances between its largest structures (superclusters and galaxy clusters). This assumes that the universe is in constant motion, something that emerges from various equations and observations. […]

James Webb Space Telescope Definition

The James Webb Space Telescope is a device intended for outer space research that was manufactured with the contribution of more than a dozen countries. It is a space observatory that is operated jointly by NASA, the Canadian Space Agency (CSA) and the European Space Agency (ESA). This telescope, […]

Definition of luminosity

Luminosity is the amount of light emitted or reflected by an object or source. In more technical terms, it is a measure of the total magnitude of visible radiant energy emitted by a light source. Brightness is measured in units such as lumens (lumens) or candela, depending on the context. The importance of […]

Definition of gravitational wave

Gravitational wave is the expression used in Spanish to refer to a fluctuation or vibration of a concentric, invisible and very fast nature that occurs in the universe. In 2017, North Americans Kip S. Thorne, Barry C. Barish and Rainer Weiss were awarded the Nobel Prize in Physics for their conclusive […]

Definition of supernova

Supernova is the name given to massive cosmic explosions linked to the final evolutionary instance of massive stars or the nuclear fusion of white dwarfs. These are important and powerful events marked by great brilliance and shocking luminosity. So intense are the flashes that the […]

Definition of Kuiper belt

Kuiper Belt is the expression used to identify the ring made up of icy bodies that is located outside the orbit of the planet Neptune. This circumstellar disk unfolding in the outer solar system is also often called the Edgeworth-Kuiper belt. The most widespread name immortalizes the surname of the prestigious […]