The measurement and scale of the Universe. How far is a star or a galaxy? Distances are so vast they are described in light years the distance light travels in a year. Nearby stars are measured by trigonometry the technique of parallax. Farther out, astronomers use so-called standard candles. Th...
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For more than a decade, free from the distortions of Earths atmosphere, the Hubble Space Telescope has delivered breathtaking images of the cosmos with remarkable clarity. Now, ground-based telescopes are fighting back. They are combining the sight of several instruments and correcting atmospher...
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En este capítulo de Spacefiles, veremos los entresijos de las estaciones espaciales, y se centrará en la estacición internacional MIR. La MIR es sólo la rampla de lanzamiento hacia otros mundos en el futuro, como Marte en 2025. En la MIR se ha hecho múltiples pruebas para saber la resistencia de...
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A guide to the stars and constellations visible from the northern hemisphere, the tropics and the southern hemisphere. Leo and Virgo in the north. Carina and Centaurus in the south. Why the positions of stars look fixed during a human lifetime but how they move over thousands of years. ... york ...
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sería 176 días. Con la peculiar cercanía al sol y órbita muy eclíptica produce un "doble amanecer" y se produce cuando está más cerca del sol. La doble proporción de su núcleo de Hierro podría explicarse por un choque de un planetisimal (cuasiplaneta). En la llanura de Caloris es la zona más calu...
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En este capítulo de Spacefiles veremos los entresijos de Venus, en la que hace unos siglos se creía que había seres vivos allá a causa de su densa atmósera. Es el segundo planeta más cercano al Sol, y tiene un tamaño similar al de la Tierra. Venus, es el planeta más luminoso desde la Tierra. Dur...
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The vanishing acts in the cosmos black holes. They occur when a massive star dies. As its outer layers cascade into space, the core collapses to beyond the visible. It becomes a voracious gravitational trap from which nothing, not even light, escapes. Black holes can be detected by bright surrou...
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