- Отрасли: Astronomy
- Number of terms: 6727
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Planetary Science Research Discoveries (PSRD) is an educational site sharing the latest research by NASA-sponsored scientists on meteorites, asteroids, planets, moons, and other materials in our Solar System. The website is supported by the Cosmochemistry Program of NASA's Science Mission ...
Una desviación de la regla común, tipo o forma; algo anormal o incoherentes.
Industry:Astronomy
The region of "altered space" that will interact with the magnetic properties of a magnet. It is located mainly between the opposite poles of a magnet or in the energetic space about an electric charge in motion.
Industry:Astronomy
Movimiento debido a las diferencias en la densidad del agua del agua de un lugar a otro generalmente causada por cambios en la cantidad de material en suspensión o los cambios de temperatura o variaciones de la salinidad.
Industry:Astronomy
Físicos y geoquímicos procesos que resultan en la formación secuencial y la separación de minerales de un derretimiento. El magma residual cambios en composición y llega a ser enriquecido en elementos incompatibles.
Industry:Astronomy
El proceso por el cual las plantas convertir agua y dióxido de carbono en hidratos de carbono, usando la luz solar como fuente de energía y la ayuda de la clorofila.
Industry:Astronomy
Remoción de rocas resistidas por movimiento agua, viento, hielo o gravedad.
Industry:Astronomy
Astronomical brightness measured on a logarithmic scale, based on the ancient practice of noting that the brightest stars in the sky were of "first importance" or "first magnitude", the next brightest being "second magnitude" etc. The human eye is a logarithmic detector, and in 1854 Pogson formalized this scale and defined a difference of 5 magnitudes to be exactly a factor of 100 in brightness. The scale is calibrated to the bright star Vega which is defined to have a magnitude of 0. For reference, the faintest naked-eye magnitude visible from a dark site is +6. Comet C/1996 B2 Hyakutake reached magnitude 0 in late March 1996.
Industry:Astronomy
Sedimento sulla superficie degli altipiani lunari, composto di roccia rotta e frammenti minerali, vetro e prodotti da impatto.
Industry:Astronomy
Termine che descrive la composizione chimica di una roccia ignea composta quasi interamente da minerali ricchi di magnesio e ricchi di ferro (e. G., olivina, pirosseni) e silice minima.
Industry:Astronomy
Una grande nuvola di polvere e gas che fuoriescono dal nucleo di una cometa attiva.
Industry:Astronomy
