A feature of light absorption by the hydrogen surrounding early galaxies could be used as a new probe into the mysteries of dark matter and how it affected the evolution of the universe during the cosmic dark ages. Scientists have long theorized that dark matter, a mysterious substance that makes up about 85 percent of … Read more
The universe is twice as old as current estimates suggest, according to a new study that challenges the dominant cosmological model and sheds new light on what is known as the impossible problem of the first galaxies. Our newly developed model lengthens the galaxy formation time by several billion years, making the universe 26.7 billion … Read more
When the James Webb Space Telescope began collecting data, it gave us an unprecedented view of the distant cosmos. The faint red-shift galaxies seen by Hubble as mere smudges of light have been revealed as objects of structure and shape. And astronomers were faced with a small problem. Those early galaxies seemed overdeveloped and too … Read more
image: Our newly developed model lengthens the galaxy formation time by several billion years, making the universe 26.7 billion years old and not 13.7 as previously estimated. Rajendra Gupta Adjunct Professor of Physics at the University of Ottawa Faculty of Science visualization Moreover Credit: University of Ottawa Our universe could be twice as large as … Read more
Just as Charles Darwin once used the fossil record to tell the story of the evolution of life on Earth, astronomers are using the first light to shine in the universe to understand the events that shaped the cosmos. This early light is called the “Cosmic Microwave Background (CMB),” leftover radiation that spreads almost uniformly … Read more
First image of black hole Pwehi released on April 10, 2019. (File photo courtesy of the Event Horizon Telescope Project and Maunakea Observatories) In the spring of 2019, astronomer Doug Simons found it difficult to sleep at night after seeing the world’s first image of a black hole, taken by the international collaboration of the … Read more
Quasar’s observations have allowed astronomers to see time move in slow motion. This is a prediction of Einstein’s special theory of relativity. Image via NASA/ ESA/ J. Olmsted (STScI). Geraint Lewis, University of Sydney According to our best understanding of physics, the fact that space is expanding should affect the apparent flow of time, with … Read more
Ancient stars born during the Cosmic Dawn have been identified at the center of the Milky Way. As part of a survey to discover some of the oldest known stars in the Universe, scientists have conducted a comprehensive search for these ancient but elusive stars, and have found that the measures revolving around the galactic … Read more
I was not interested in biology not at all when I was young because there seemed to be so much to learn and no rules. It wasn’t until I was introduced to genetics that I understood there I am rules. And I am Truly Interesting. So I studied genetics at the University of Adelaide and … Read more
an artist’s illustration of gravitational waves, showing spiral ripples on a gridded surface emerging from two merging spheres Gravitational waves emitted when distant black holes collide and merge, ringing the very fabric of space-time like bells, could be used to help measure how fast the universe is expanding, according to a new study. Since the … Read more
