Trevor Grimshaw

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What Is (And Isn't) Scientific About The Multiverse

The Universe is all there ever was, all there is, and all there will ever be. At least, that’s what we’re told, and that’s what’s implied by the word “Universe” itself. But whatever the true nature of the Universe actually is, our ability to gather information about it is fundamentally limited.<p>It’s …

Dark Matter

We Just Found The Missing Matter In The Universe, And Still Need Dark Matter

For over 40 years, scientists have argued over dark matter’s existence.<p>Big questions arose from the motions inside galaxies, clusters of galaxies, and along the cosmic web.<p>From their gravity, we can infer the total mass in the Universe.<p>Yet multiple sources indicate that only 15% of that mass can be …

Dark Matter

Are Space And Time Quantized? Maybe Not, Says Science

Throughout the history of science, one of the prime goals of making sense of the Universe has been to discover what’s fundamental. Many of the things we observe and interact with in the modern, macroscopic world are composed of, and can be derived from, smaller particles and the underlying laws …

Quantum Mechanics

The Surprising Reason Why Neutron Stars Don't All Collapse To Form Black Holes

There are few things in the Universe that are as easy to form, in theory, as black holes are. Bring enough mass into a compact volume and it gets more and more difficult to gravitationally escape from it. If you were to gather enough matter in a single spot and let gravitation do its thing, you’d …

Physics

A Classical Math Problem Gets Pulled Into Self-Driving Cars

Long before robots could run or cars could drive themselves, mathematicians contemplated a simple mathematical question. They figured it out, then …

People in South East may be descended from Romans as study suggests invaders may have stayed in Britain

The Romans may have given us impressive roads, plumbing and an entirely new calendar, but it was always thought that when they left Britain they took their DNA with them.<p>Previous studies have shown that the legionnaires left little genetic legacy before returning to defend the Roman Empire from …

The Scientific Paper Is Obsolete

Here’s what’s next.<p>The scientific paper—the actual form of it—was one of the enabling inventions of modernity. Before it was developed in the 1600s, results were communicated privately in letters, ephemerally in lectures, or all at once in books. There was no public forum for <i>incremental</i> advances. …

Watch 13.8 Billion Years Of Space History In 10 Minutes

Consider the <i>entire history</i> of the universe. Humans? We're nothing. A speck. A dot. A crumb in a sea of cosmic biscuits. That sort of thing. So when …

Universe

Einstein's Ultimate Test: Star S0-2 To Encounter Milky Way's Supermassive Black Hole

This year, for the first time, astronomers will observationally measure a gravitational redshift around a supermassive black hole.<p>When an object gets close to a massive source, its light must “climb out” of the deformed spacetime predicted by Einstein.<p>The gravitational potential well can cause the …

First beam for an important new physics experiment

An anomaly in the tiny magnetic field of a fundamental particle could be the loose thread that lets us unravel a new layer of physics. A new experiment has started to take a closer look<p>A new experiment at the Fermi National Laboratory near Chicago, USA, has just taken an important step. The first …

I wrote THE BEST presidential briefing on global warming for Donald Trump

Given that no one seems to know what President Trump thinks about the reality of human-caused climate change, perhaps we can agree that it's about …

Donald Trump

Gravity's light-bending effect seen in the dance of distant stars

According to Einstein's general theory of relativity, the gravity from huge objects like stars and galaxies can curve the fabric of spacetime, to the …

This '4D' printing method could make packing for outer space much easier

These tiny objects made with 3D printers can dramatically expand when exposed to heat.<p>Scientists have created a pair of compact, unfurling structures …

This New Explanation For Dark Matter Could Be The Best One Yet

Has it been shifting forms this whole time?<p>It makes up about 85 percent of the total mass of the Universe, and yet, physicists still have no idea …

11 Scientific Advances Of The Past 100 Years Gave Us Our Entire Universe

Exactly 100 years ago, our conception of the Universe was far different from what it is today. The stars within the Milky Way were known, and were known to be at distances up to thousands of light years away, but nothing was thought to be further. The Universe was assumed to be static, as the …

Universe

The Big Bang Wasn't The Beginning, After All

The Universe began not with a whimper, but with a bang! At least, that’s what you’re commonly told: the Universe and everything in it came into existence at the moment of the Big Bang. Space, time, and all the matter and energy within began from a singular point, and then expanded and cooled, …

Universe

Scientists Resolve Mysterious Violation to Einstein's Relativity

Even if you don’t know much physics, you probably know one of its core tenets: an object at rest stays at rest, and an object in motion stays in …

Physics

Black Holes Must Have Singularities, Says Einstein's Relativity

The more mass you place into a small volume of space, the stronger the gravitational pull gets. According to Einstein’s general theory of relativity, there’s an astrophysical limit to how dense something can get and still remain a macroscopic, three-dimensional object. Exceed that critical value, …

Physics

The EPA debunked Administrator Pruitt’s latest climate misinformation | Dana Nuccitelli

Until Pruitt deleted the EPA climate webpages.<p>Last week, a Las Vegas news station interviewed Trump’s EPA administrator Scott Pruitt. The interviewer brought up the topic of climate change, and virtually everything Pruitt said in response was wrong, and was often refuted on his own agency’s …

Climate Change

South Australia announces grants worth $8.7m for pumped hydro storage

Grants promised for feasibility studies into plants near Whyalla, Port Augusta and Port Germein<p>The South Australian government is talking up the future of pumped hydro energy storage with grants announced for four projects before the 17 March election.<p>Grants ranging from $500,000 to $4.7m have been …

The Biggest Myth In Quantum Physics

In everyday life, there are certain rules we take for granted: cause-and-effect, for instance. Something occurs, and that causes other things to occur dependent on what happened at the start. Different causes lead to different effects. But in the case of quantum physics, the standard rules are …

Quantum Physics