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There’s some potentially big news on the hunt for dark matter. Astronomers may have a handle on what makes this mysterious cosmic stuff: strange particles called “axions.”

Rather than search directly for axions, however, a multinational team of researchers led by Keir Rogers from the University of Toronto looked for something else. They focused on the “clumpiness” of the Universe and found that cosmic matter is more evenly distributed than expected.

So, what role do axions play here? Quantum mechanics explains these ultra-light particles as “fuzzy” because they exhibit wave-like behavior. It turns out their wavelengths can be bigger than entire galaxies. Apparently, that fuzziness plays a role in smoothing out the Universe by influencing the formation and distribution of dark matter. If that’s true, then it goes a long way toward explaining why the matter in the cosmos is more evenly spread out. It implies that axions play a part in the distribution of matter in the cosmos.

Gravitational waves, like the discovery of the Higgs boson in 2012, have made their mark on a decade of extraordinary discoveries in physics. Unlike gravity, which is created when massive objects leave their mark in the fabric of spacetime, gravitational waves are very weak ripples in spacetime that are caused by gravity-accelerated masses.

So far, researchers have been able to detect the gravitational waves produced by the melting together of very heavy objects, such as black holes or neutron stars. When this happens, these echoes from the past reverberate through the whole universe and finally reach Earth, allowing us to piece together what happened millions of light-years ago.

Current gravitational-wave observatories can only detect a few gravitational waves as they cover just a narrow spectrum of the whole range of wavelengths that are emitted. Future gravitational-wave observatories, such as the Einstein Telescope, a CERN-recognized experiment, need to be larger in order to search for a larger bandwidth of gravitational waves that could tell us more about the universe.

ESA/Wikimedia.

This is according to a report by The Guardian published on Sunday.

The concept of a mirror universe has often been studied in theoretical cosmology, and as a new study shows, it might help us solve problems with the cosmological constant.

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A sci fi documentary exploring a timelapse of future space colonization. Travel through 300 years, from 2052 to 2,301 and beyond, and see how modern science fiction becomes reality.

Witness the journey of humans expanding from Earth, to the Moon, to Mars, and beyond.

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This paper demonstrates that a stochastic, rather than uniform, injection rate of MeV cosmic rays from supernovae can successfully model the observed ionization rate distribution for Galactic molecular clouds.

Seeing a supernova, or an exploding star, is a unique spectacle in itself. But recently, astronomers have found something even more unique: A star explosion so “extremely warped” that it looked like it was multiple images in the sky.

So how did this happen?

It’s not magic, according to the California Institute of Technology, but an effect known as “gravitational lensing,” which happens when gravity from a dense object in space “distorts and brightens the light of an object behind it.” In the case of supernova SN Zwicky, it was the gravity of another galaxy that impacted its appearance.

Early Dark Energy Spectroscopic Instrument (DESI) release holds nearly two million objects, including distant galaxies, quasars and stars in our own Milky Way.

Dark Energy Spectroscopic Instrument (DESI), the most robust multi-object survey spectrograph, capable of mapping more than 40 million galaxies, quasars, and stars, recorded an 80-terabyte data set this Tuesday.

Continue reading “First batch of DESI data available for scientists to mine” »