An uneven distribution of stars in several nearby clusters may offer evidence of MOND – a controversial theory of gravity that disputes Newton and rejects the existence of dark matter.
Astronomers observing star clusters in our galaxy have found evidence that controversially challenges Newton's laws of gravity and could upend our understanding of the universe. The puzzling finding could support a controversial idea that does away entirely with dark matter.
Kroupa is the lead author of a study published Oct. 26 in the Monthly Notices of the Royal Astronomical Society that argues the observations are evidence of modified Newtonian dynamics — an alternative theory of gravity to Newton's widely accepted universal law of gravitation. Dark matter?Issac Newton's universal law of gravitation, published in 1687, states that every particle in the universe attracts every other with a force proportional to their masses and inversely proportional to the square of their distance. Albert Einstein later incorporated this law into his theory of general relativity, which was published in 1915.
The main consequence of MOND is that dark matter doesn't exist — an idea that most astrophysicists dismiss, Kroupa said."The majority of scientists completely reject Mond," he said."Many serious scientists don't think Mond is serious, and so they wouldn't consider looking at it." The observed discrepancies strengthen the case for MOND, but they can't be a result of the invisible action of dark matter.—The 15 weirdest galaxies in the universe
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