dark matter

Dark Matter Detector Finds the Rarest Event Ever Seen in the Universe

Dark Matter Detector Finds the Rarest Event Ever Seen in the Universe

Since the 1960s, scientists have theorized that the Universe is filled with a mysterious, invisible mass. Known as “dark matter“, this mass is estimated to make up roughly 85% of the matter in the Universe and a quarter of its energy density. While this mass has been indirectly observed and studied, all attempts at determining its true nature have so far failed.

Dark matter may not actually exist – and our alternative theory can be put to the test

 Dark matter may not actually exist – and our alternative theory can be put to the test

Scientists have been searching for “dark matter” – an unknown and invisible substance thought to make up the vast majority of matter in the universe – for nearly a century. The reason for this persistence is that dark matter is needed to account for the fact that galaxies don’t seem to obey the fundamental laws of physics. However, dark matter searches have remained unsuccessful.

CERN is Planning to Build a Much, Much Larger Particle Collider. – here’s what it could discover

CERN is Planning to Build a Much, Much Larger Particle Collider. – here’s what it could discover

The Large Hadron Collider (LHC) at CERN is the most powerful particle accelerator in the world. During its ten years of operations it has led to remarkable discoveries, including the long sought-after Higgs boson. On January 15, an international team of physicists unveiled the concept design for a new particle accelerator that would dwarf the LHC.

It Looks Like Dark Matter Can be Heated Up and Moved Around

It Looks Like Dark Matter Can be Heated Up and Moved Around

Look at a galaxy, what do you see? Probably lots of stars. Nebulae too. And that’s probably it. A whole bunch of stars and gas in a variety of colorful assortments; a delight to the eye. And buried among those stars, if you looked carefully enough, you might find planets, black holes, white dwarves, asteroids, and all sorts of assorted chunky odds and ends. The usual galactic milieu.

Faint Glow Within Galaxy Clusters Illuminates Dark Matter

Faint Glow Within Galaxy Clusters Illuminates Dark Matter

A new look at Hubble images of galaxies could be a step toward illuminating the elusive nature of dark matter, the unobservable material that makes up the majority of the universe, according to a study published online today in the Monthly Notices of the Royal Astronomical Society.

Bizarre ‘dark fluid’ with negative mass could dominate the universe – what my research suggests

Bizarre ‘dark fluid’ with negative mass could dominate the universe – what my research suggests

It’s embarrassing, but astrophysicists are the first to admit it. Our best theoretical model can only explain 5% of the universe. The remaining 95% is famously made up almost entirely of invisible, unknown material dubbed dark energy and dark matter. So even though there are a billion trillion stars in the observable universe, they are actually extremely rare.

Dark Matter Isn’t Made From Black Holes

In February of 2016, scientists working for the Laser Interferometer Gravitational-Wave Observatory (LIGO) made history when they announced the first-ever detection of gravitational waves. Since that time, multiple detections have taken place and scientific collaborations between observatories  – like Advanced LIGO and Advanced Virgo – are allowing for unprecedented levels of sensitivity and data sharing.

How we proved Einstein right on a galactic scale – and what it means for dark energy and dark matter

How we proved Einstein right on a galactic scale – and what it means for dark energy and dark matter

Gravity may be the weakest of the fundamental forces in nature, but it is ultimately what enabled life on Earth to evolve. Thanks to its weak attractiveness over long distances, mass in the early universe could clump together and form galaxies, stars and planets such as our own.

How we proved Einstein right on galactic scales – and what it means for dark energy and dark matter

How we proved Einstein right on galactic scales – and what it means for dark energy and dark matter

Gravity may be the weakest of the fundamental forces in nature, but it is ultimately what enabled life on Earth to evolve. Thanks to its weak attractiveness over long distances, mass in the early universe could clump together and form galaxies, stars and planets such as our own.

Study suggests the elusive ‘neutrino’ could make up a significant part of dark matter

Study suggests the elusive ‘neutrino’ could make up a significant part of dark matter

Physicists trying to understand the fundamental structure of nature rely on consistent theoretical frameworks that can explain what we see and simultaneously make predictions that we can test. On the smallest scale of elementary particles, the standard model of particle physics provides the basis of our understanding.

Hubble finds first galaxy in the local Universe without dark matter! - Here’s what that means.

Hubble finds first galaxy in the local Universe without dark matter! - Here’s what that means.

Roughly 65 million light-years away from Earth is a galaxy called NGC 1052-DF2 (DF2 for short). But DF2 may as well be called F-U, because that’s what it’s saying to scientists who thought they understood galaxies, dark matter, and really anything about our universe.

Improved Hubble Yardstick Gives Fresh Evidence for New Physics in the Universe

Improved Hubble Yardstick Gives Fresh Evidence for New Physics in the Universe

Astronomers have used NASA's Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe.

Dark Matter May Be a Product of Gravitational Waves with a Twist

Dark Matter May Be a Product of Gravitational Waves with a Twist

It is said that the universe is made up of over 80 percent dark matter. What dark matter exactly is, however, has continued to elude experts. Theories abound, and a recent one suggests an entirely different approach involving gravitational waves.

It’s 2018. Here Are Six Scientific Mysteries We Still Haven’t Solved.

It’s 2018. Here Are Six Scientific Mysteries We Still Haven’t Solved.

Humans have made a staggering amount of scientific and technological progress over the past century. We’ve created technology that has transformed our society; scientific advances have helped us answer fundamental questions about who we are and the world that we inhabit. And, yet, mysteries persist.

How crashing neutron stars killed off some of our best ideas about what ‘dark energy’ is

How crashing neutron stars killed off some of our best ideas about what ‘dark energy’ is

There was much excitement when scientists witnessed the violent collision of two ultra-dense, massive stars more than 100m light years from the Earth earlier this year. Not only did they catch the resulting gravitational waves – ripples in the fabric of spacetime – they also saw a practically instantaneous flash of light. This is exciting in itself and was the first direct evidence for a merger of neutron stars.