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Hace 2 días · Nicolaus Copernicus [b] (19 February 1473 – 24 May 1543) was a Renaissance polymath, active as a mathematician, astronomer, and Catholic canon, who formulated a model of the universe that placed the Sun rather than Earth at its center.
Hace 2 días · Magnetar found very close to the supermassive black hole, Sagittarius A*, at the center of the Milky Way galaxy. The comparatively small mass of this supermassive black hole, along with the low luminosity of the radio and infrared emission lines, imply that the Milky Way is not a Seyfert galaxy.
Hace 5 días · Researchers aboard the research vessel "Polarstern" found an ancient river in West Antarctica that existed 40 million years ago using advanced drilling equipment. (Image credit: Karsten Gohl ...
Hace 2 días · New photos from the European Space Agency's Mars Express orbiter give us our best look yet at a giant ravine on the Red Planet. The dark "scar" was likely birthed by a gigantic blob of magma ...
Hace 1 día · The Sun is the star at the center of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies.
Hace 1 día · Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Explanation: A glow from the summit of Mount Etna , famous active stratovolcano of planet Earth, stands out along the horizon in this mountain and night skyscape.
Hace 5 días · Numerous ancient mythologies contained references to a centre to the universe, an “axis mundi” (Latin for the axis of the Earth between the celestial poles) that was believed to connect the Earth, the heavens, and other realms together.
