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by Indranil Banik, Postdoctoral Researcher in Astrophysics, University of St Andrews 10 July 2022 Dark matter has been proposed to explain why stars at the far end of galaxies can move faster than Newton thought. An alternative theory of gravity may be a better explanation. Using Newton’s laws of physics, we can model the motion of the planets in the solar system with complete accuracy. However, in the early 1970s, scientists discovered that it didn’t work for him. Disc galaxies The stars on their outer edges, away from the gravitational force of all matter at their center, are moving much faster than Newton’s theory predicted. As a result, physicists suggest that the invisible substance called “dark matter” exerts an additional gravitational pull, causing the star to accelerate — a widely accepted theory. However, in a recent review my colleagues and I suggested that observations at multiple scales are much better explained in an alternative theory of gravity called Milgromian or

By Indranil Banik, Postdoctoral Researcher from Astrophysics, University of St Andrews 10 July 2022 Dark matter is proposed to explain why stars at the far edges of galaxies can move faster than Newton predicted. An alternative theory of gravity may be a better explanation. Using Newton’s laws of physics, we can model the motion of the planets in the Solar System quite accurately. However, in the early 1970s, scientists discovered that this did not work for disk galaxies – the stars at their outer edges, away from the gravitational force of all matter at their centres – moving much faster than Newton’s theory predicted. As a result, physicists proposed that an invisible substance called “dark matter” exerted an extra gravitational pull, causing the stars to accelerate – a theory that became widely accepted. However, in a recent review, my colleagues and I suggested that observations at multiple scales are much better explained in an alternative theory of gravity called Milgromian o

Scientists have studied Earth for so long, but some questions remain unanswered. An international research team led by ETH Zurich and the National Center for Competence on Planetary Research proposes a new answer to the question- how the Earth was formed. The prevailing theory suggests that the Earth was formed from chondritic asteroids. These are relatively small and simple blocks of rock and metal that formed in the early solar system. However, the problem with this theory is that no mixture of these chondrites can explain the exact composition of Earth, which is much poorer in light, volatile elements such as hydrogen and helium than expected. Over the years, many theories have been proposed to explain this difference. For example, it was proposed that the objects that later became Earth collided and generated tremendous heat. Light components are evaporated; consequently, left the planet with her current makeup. The study’s lead author, Paolo Sossi, Professor of Experimental

Scientists have studied Earth for so long, but some questions remain unanswered. An international research team led by ETH Zurich and the National Center for Competence on Planetary Research proposes a new answer to the question- how the Earth was formed. The prevailing theory suggests that the Earth was formed from chondritic asteroids. These are relatively small and simple blocks of rock and metal that formed in the early solar system. However, the problem with this theory is that no mixture of these chondrites can explain the exact composition of Earth, which is much poorer in light, volatile elements such as hydrogen and helium than expected. Over the years, many theories have been proposed to explain this difference. For example, it was proposed that the objects that later became Earth collided and generated tremendous heat. Light components are evaporated; consequently, left the planet with her current makeup. The study’s lead author, Paolo Sossi, Professor of Experimental

We can model the motion of the planets in the Solar System quite accurately using Newton’s laws of physics. But in the early 1970s, scientists noticed that this didn’t work for disk galaxies — the stars on their outer edges, away from the gravitational force of all matter at their center — moving much faster than Newton’s theory predicted. This led physicists to propose that an invisible substance called “dark matter” exerts an extra gravitational pull, causing the stars to accelerate – a theory that has become very popular. However, in a recent review, my colleagues and I suggested that observations at multiple scales are much better explained in an alternative theory of gravity proposed by Israeli physicist Mordehai Milgrom in 1982 called Milgromian or Mond dynamics – requiring no material not visible. Mond’s main postulate is that when gravity becomes very weak, as it does at the edges of galaxies, it begins to behave differently from Newtonian physics. In this way, it is possibl