The best alternative to dark matter and dark energy?

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According to the standard model of cosmology, also known as ΛCDM (Lambda Cold Dark Matter) model, about 95% of our Universe is invisible or undetectable, or possibly both. Various alternative models have been proposed to describe our Universe without the need of dark matter or dark energy. One of them, …

Matter and antimatter – A fundamental symmetry confirmed

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According to theory, matter and antimatter have exactly the same properties, except for the opposite electrical charge. Researchers have now calculated the antiproton mass relative to the electron with unprecedented precision: it weighs exactly the same as its matter counterpart, the proton.
The laws of nature are assumed to obey a …

The old man in the Sun

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While everyone has seen what looks like a man’s face on the surface of the Moon, nobody has ever seen any on the surface of the Sun… Nobody except SDO.
In the video below, a set of pictures taken by the Solar Dynamics Observatory Spacecraft shows the Sun in different wavelengths. …

Cosmology – A brief review of the standard model

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Cosmology, the study of the evolution and the structure of the Universe, has a long history in various areas, such as philosophy and of course science.
I recently found this paper by Jorge L. Cervantes-Cota and George Smoot on arXiv, and thought some of you might be interested. It gives a short review on …

Habitability within our Galaxy – Could complex life exist elsewhere?

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A team of researchers has presented a new model of habitability within the Milky Way. According to their calculations, more than one in every hundred stars may have planets capable of supporting complex life within our Galaxy. Their results will be published in the journal Astrobiology.
Astronomers generally focus on exoplanets orbiting stars …

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