New research suggests that our universe has no dark matter
The current theoretical model for the composition of the universe is that it's made of normal matter, dark energy and dark matter. A new University of Ottawa study challenges this.
The current theoretical model for the composition of the universe is that it's made of normal matter, dark energy and dark matter. A new University of Ottawa study challenges this.
Astronomy
Mar 15, 2024
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The development of a new theory is typically associated with the greats of physics. You might think of Isaac Newton or Albert Einstein, for example. Many Nobel Prizes have already been awarded for new theories.
General Physics
Feb 7, 2024
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34
Astronomers routinely explore the universe using different wavelengths of the electromagnetic spectrum from the familiar visible light to radio waves and infrared to gamma rays. There is a problem with studying the universe ...
Astronomy
Jan 15, 2024
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108
It's a fact that many of us have churned out during public engagement events that at least 50% of all stars are part of binary star systems. Some of them are simply stunning to look at; others present headaches with complex ...
Astronomy
Dec 5, 2023
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36
The universe is expanding. How fast it does so is described by the so-called Hubble-Lemaitre constant. But there is a dispute about how big this constant actually is: Different measurement methods provide contradictory values.
Astronomy
Dec 2, 2023
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The theory of relativity is at once simple and elegant but also maddeningly nonintuitive. There's no need to get into the full guts and glory of that theory here, but there is one feature of Einstein's work that takes center ...
General Physics
Nov 10, 2023
45
117
A team of astronomers has found a new clue that a recently discovered near-Earth asteroid, Kamo'oalewa, might be a chunk of the moon. They hypothesized that the asteroid was ejected from the lunar surface during a meteorite ...
Astronomy
Oct 23, 2023
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155
For those still holding out hope that antimatter levitates rather than falls in a gravitational field, like normal matter, the results of a new experiment are a dose of cold reality.
General Physics
Sep 27, 2023
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Yale researchers may have solved a longstanding puzzle as to why certain metallic meteorites show traces of a magnetic field—a finding that may shed light on the formation of magnetic dynamos at the core of planets.
Astronomy
Aug 1, 2023
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2845
Earth is rapidly warming and scientists are developing a variety of approaches to reduce the effects of climate change. István Szapudi, an astronomer at the University of Hawaiʻi Institute for Astronomy, has proposed a ...
Planetary Sciences
Jul 31, 2023
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