Tag: astronomy
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Magnetic sense. Astronomy. Void cosmos. Humans moving.
The human brain can unconsciously respond to changes in Earth’s magnetic fields, according to a team of geoscientists and neurobiologists. This interdisciplinary study revives a research area in neuroscience that has remained dormant for decades. (1) We used to believe we can sense the cosmos. We used to have astrology and religion. Now we have…
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How much do you weight?
Scientists measure the weight of our galaxy using NASA’s Hubble Space Telescope and the European Space Agency’s Gaia satellite. It seems that the Milky Way weighs in at about 1.5 trillion solar masses, according to the latest measurements. Only a few percent of this is contributed by the approximately 200 billion stars in the Milky…
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Theories. Beliefs. Theories…
A black hole is conventionally thought of as an astronomical object that irrevocably consumes all matter and radiation which comes within its sphere of influence. Physically, a black hole is defined by the presence of a singularity, i.e., a region of space, bounded by an ‘event horizon’, within which the mass/energy density becomes infinite, and…
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Universe. Dimensions. Eternal (broken) circles.
Researchers have devised a new model for the universe – one that may solve the enigma of dark energy. They propose a new structural concept, including dark energy, for a universe that rides on an expanding bubble in an additional dimension. The whole Universe is accommodated on the edge of this expanding bubble. All existing…
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How do we know the stars are suns? (On the limits of astronomy)
Abstract: The Sun being another star is common knowledge. However, as it happens with all things that are considered obvious, few can actually name exactly who and how the Sun was considered as just another star. It seems that besides evidence from stellar spectroscopy and the measurement of astronomical distances, philosophical principles also played a…
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