In a new study, researchers from the University of Ottawa have questioned the current theoretical model of the universe’s composition, which suggests that it is made up of “normal matter”, “dark energy,” and “dark matter”. The study, led by Professor Rajendra Gupta from the Faculty of Science’s Department of Physics, demonstrates that the universe may […]
Astrophysics
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Scientists Propose the Existence of Gravastars or Gravitational Stars Nested Inside Each Other
Black holes continue to mystify scientists. In 1916, German physicist Karl Schwarzschild proposed a solution to Albert Einstein’s general relativity equations suggesting that the center of a black hole contains a “singularity” — a point where space and time cease to exist. According to theory, within the singularity all physical laws, including Einstein’s general relativity, […]
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NASA Telescopes Find New Clues to Mysterious Deep Space Signals
Two NASA X-ray telescopes recently observed one of these phenomena – known as a fast radio burst (FRB) – just minutes before and after it occurred. This unprecedented observation is helping scientists better understand these extreme radio events. FRBs last only a fraction of a second but can release as much energy as the Sun […]
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Astronomers Detect Cosmic Web of Dark Matter Stretching Like a Spider Web Thousands of Light-Years Away
Scientists have achieved an important observational milestone with the detection of dark matter extending millions of light years from the Coma galaxy cluster. Using the Subaru Telescope’s wide-field Hyper Suprime-Cam, astronomers were able to capture the first images of wispy dark matter filaments connecting galaxy clusters over immense scales. Dark matter is believed to make […]
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Researchers Propose Our Universe Expands by Merging with Other Smaller Parallel Universes
A new study published by researchers from the University of Copenhagen and the Tokyo Institute of Technology proposes an alternative theory to the standard cosmological model to explain the acceleration of the universe without the need for dark energy. Scientists agree that the Universe is expanding faster and faster, but they don’t all point to […]
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First-ever Observation of a Supermassive Black Hole Preventing Star Creation in a Galaxy at the Dawn of the Universe
A quasar is a compact region powered by a supermassive black hole located at the center of a massive galaxy. They are extremely bright, with a pinpoint appearance similar to stars, and are far away from Earth. Due to their distance and brightness, they allow a glimpse into the conditions of the early Universe, when […]
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James Webb Telescope Shows Most Galaxies in the Early Universe Were Long and Thin, not Spherical or Disk-shaped
Scientists have been using NASA’s space telescope James Webb to learn about galaxies from long ago. Way back then, when the universe was just getting started, most galaxies didn’t look like the spiral shapes we see today. The researchers found that a huge number of early galaxies were thin and flat, like surfboards lying on […]
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Another Mysterious Ultra-large Structure in Deep Space, a Large Ring 4 Billion Light-years in Circumference, Discovered by Astronomers
A doctoral student in the United Kingdom has made an unexpected discovery that challenges some basic assumptions in cosmology. Alexia Lopez, a student at the University of Central Lancashire, has found evidence of an immense ring-like structure in the distant universe. Known as the Big Ring on the Sky, it is over 9 billion light-years […]
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Astronomers Discover Origin of Rare Radio Circles in Universe
Astronomers don’t usually say “What’s that?” when looking at the night sky. They know what most things are like stars, planets, black holes and galaxies. But in 2019, a new radio telescope called ASKAP saw something it had never seen before – huge circles made of radio waves, with whole galaxies inside them. Scientists wanted […]
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An ultra-high energy cosmic ray from an unknown location in space impacted the Earth
A high-energy particle fell from space and hit the Earth’s surface, but its origin and exact nature are unknown. This may sound like science fiction, but it’s a real scientific discovery, according to research led by Associate Professor Toshihiro Fujii of Osaka Metropolitan University’s Faculty of Science and Institute for Theoretical and Experimental Physics. Cosmic […]
