Reinventing cosmology: uOttawa research puts the age of the universe at 26.7 not 13.7 billion years

Reinventing cosmology: uOttawa research puts the age of the universe at 26.7 not 13.7 billion years

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

The first light that will flood the universe can help unravel the history of the cosmos. that’s how

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

Astronomers see time moving in slow motion in the early universe

Time moving slow motion: Swirling galaxy in pink and blue with jets up and down shooting out of the glowing center.

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

Gravitational waves could help us find out how fast the expansion of the universe is accelerating

an artist's illustration of gravitational waves, showing spiral ripples on a gridded surface emerging from two merging spheres

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

Gravitational waves could help us find out how fast the expansion of the universe is accelerating

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 late 1990s, astronomers have known that not only is the universe expanding, but it’s doing so at an … Read more

Einstein Claimed: Quasar Clocks Show Universe Was 5 Times Slower Just After the Big Bang

Astrophysics of the time of the Big Bang

In a groundbreaking study, scientists used quasars as cosmic clocks to observe the early universe moving in extreme slow motion, further validating Einstein’s theory of general relativity. By examining data from nearly 200 quasars, hyperactive supermassive black holes at the centers of the first galaxies, the team found that time seemed to flow five times … Read more

What’s next for the Euclid ‘dark universe’ telescope in Europe after SpaceX’s extraordinary launch?

CAPE CANAVERAL, Fla. — A new space observatory is soaring through the void after a dramatic launch atop a SpaceX rocket on Saturday (July 1), but its journey has only just begun. Europe’s Euclid Space Telescope began its long journey into deep space on a SpaceX Falcon 9 rocket at 11:11 am EDT (1511 GMT) … Read more

The Euclid Dark Universe Space Telescope rises on a mission to unravel the deepest cosmic mysteries

Euclid's takeoff

On July 1, 2023, the Euclid spacecraft, operated by the European Space Agency (ESA), was successfully launched on a SpaceX Falcon 9 rocket from Cape Canaveral Space Force Station. The spacecraft is intended to explore the mysterious components of the Universe, dark matter and dark energy. Credit: SpaceX ESA’s Euclid spacecraft took off aboard a … Read more

Dark matter could interact in totally unexpected ways with the universe

Universe Today

According to Sir Isaac Newton’s theory of universal gravitation, gravity is an action at a distance, where one object feels the influence of another regardless of distance. This became a central feature of classical Newtonian physics which remained the accepted canon for over two hundred years. In the 20th century, Einstein began reconceptualizing gravity with … Read more