CALDEN MICHAEL

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Physicists Have Created a Set of Conditions in Which Time Seems to Run in Reverse

Nobody panic.<p>While we all take for granted the fact that time's arrow forever points towards the future, physicists have always had trouble showing …

Quantum Mechanics

Scanning for Dark Matter With a Dark Matter Radio

Scientists know — okay, are fairly certain — that only five percent of the universe is made up of stuff we can identify. The rest is "dark." Our …

Dark Matter

Dark Energy Theories Demolished: Neutron Star Collision Wipes Out Scientists' Understanding of Mysterious Force

<i>This article was originally published on The Conversation. Read the original article.</i><p>There was much excitement when scientists witnessed the violent …

The detail-oriented woman who found a secret of the universe in a piece of “scruff”

A pulsar is a small, spinning star—a giant ball of neutrons, left behind after a normal star has died in a fiery explosion.<p>With a diameter of only 30km (18.6 miles), the star spins up to hundreds of times a second, while sending out a beam of radio waves (and sometimes other radiation, such as …

How Much More Can We Learn About the Universe? - Issue 51: Limits

As a cosmologist, some of the questions I hear most frequently after a lecture include: What lies beyond our universe? What is our universe expanding …

Universe

How Light Pollution Affects Our Vision Of The Night Sky

When the lights in cities stop us to see the stars shining.<p>With <i>Lost in Light</i>, Sriram Murali shows us how the light pollution of cities avoids us to …

Pollution

Hubble Spots Possible Evidence of Water on Earth-Sized TRAPPIST-1 Planets

The outer planets in the system, including the three in the habitable zone, might have substantial amounts of liquid water.<p>Perhaps the most exciting exoplanet discovery to date was announced earlier this year when researchers using multiple telescopes confirmed that there are seven Earth-sized …

For Astronomers, Neutron Star Merger Could Eclipse Eclipse

Even as the solar eclipse was mesmerizing millions, astronomers were training their space- and land-based telescopes on a far more violent …

How to Solve the Information Paradox In the Event a Black Hole Deletes the Entire Universe

In a highly informative yet somewhat terrifying animation, design house Kurzgesagt explains the concept of black holes (see previous video), the …

At This Many Decibels, A Sound Would Destroy The Universe

Let's say you're a supervillain intent on destroying the universe. Absent magical amulets or alliances with a powerful alien race, how could you pull …

Black Holes

The Present and Future of Quantum Computing for AI

Quantum computing is still in it’s infancy, and no universal architecture for quantum computers exists right now. However, their prototypes are …

Quantum Computing

Quantum Computers and Quantum Physics

A quantum computer is a computer design which uses the principles of quantum physics to increase the computational power beyond what is attainable by …

Quantum Physics Overview

How Quantum Mechanics Explains the Invisible Universe<p>Quantum physics is the study of the behavior of matter and energy at the molecular, atomic, …

Quantum Mechanics

Can't find safe eclipse glasses? Make your own eclipse projector instead.

Don't settle for the blurry cardboard box version.<p>To watch the solar eclipse on August 21, you <i>could</i> invest in a pair of eclipse glasses. But high demand means high prices—and some of the only reputable retailers are sold out entirely. For a cheaper option, build a pinhole camera, which projects a …

Pinhole Cameras

The Most Distant Massive Galaxy Observed to Date Provides Insight into the Early Universe

In their pursuit of learning how our Universe came to be, scientists have probed very deep into space (and hence, very far back in time). Ultimately, …

Universe

Deep in the Heart of Our Galaxy, Einstein Proved Right Again

Scientists always seem to be finding new evidence of Albert Einstein "being right." The latest example comes from astronomers using the European …

This Quantum Theory Says Time Can Flow Backward

Quantum physics throws all the rules of classical physics out the window. In the quantum world, particles can pass through solid walls, be in two …

Quantum Mechanics

In Outer Space, There Is No Up or Down

Ever stare into the night sky and wonder what's going on up there? Ask a cosmologist and their response would likely be "Up where?" There's probably …

Universe

Gravitational anomaly from the beginning of the universe observed on Earth

When the universe was just a few microseconds old, it existed as a strange soupy substance called quark-gluon plasma (QGP), which exhibits a whole …

Physics

Operation: neutrino

How the neutrino went from ghost particle to vital physics tool – a tale of bombs, espionage and subtle flavours<i>By David Kaiser</i>Read at Aeon

Physics

The strange topology that is reshaping physics

Topological effects might be hiding inside perfectly ordinary materials, waiting to reveal bizarre new particles or bolster quantum computing.<p>Charles …

Quantum Mechanics

A New Quantum Theory Predicts That the Future Could Be Influencing the Past

Quantum physics has spawned its share of strange ideas and hard-to-grasp concepts - from Einstein’s “spooky action at a distance” to the adventures …

Scientists Finally Witnessed a Phenomenon That Einstein Thought "Impossible"

Celestial Warping<p>According to Einstein’s general relativity theory, spacetime bends or gets distorted when it crosses a massive object due to its …

NASA Scientists Baffled By Mysterious Pit Photographed On Mars

While it’s been said that the moon is made of cheese, we know, of course, that particular dairy product was never discovered on our close lunar neighbor. But what about a place on Mars that looks like it’s made of Swiss cheese?<p>This area of the Red Planet’s southern hemisphere includes a large pit …

Scientists defy Einstein's prediction and use relativity to measure a star's mass

Astronomers scanning the skies with<p>NASA’s Hubble Space Telescope have pulled off a feat that even Albert Einstein had declared all but impossible: they’ve witnessed the subtle bending of one star’s light by another star’s gravity and used that distortion to measure a star’s mass.<p>The findings, …

Why String Theory Could Be The Key to Uncovering The 'Theory of Everything'

Life, the Universe, and everything.<p>A central goal that modern physicists share is finding a single theory that can explain the entire Universe and …

Physics

US researchers observe black hole taking more than a decade to eat star

A US researcher has noticed a black hole taking more than a decade to devour a star. Most black holes only require one year to eat stars.<p>University …

Black Holes

Scientists unleash graphene’s innate superconductivity

Already renowned for its potential to revolutionize everything from light bulbs and dental fillings through to semiconductors and motorcycle helmets, …

Nanotech

Einstein's Theory Just Put the Brakes on the Sun's Spin

Although the sun is our nearest star, it still hides many secrets. But it seems that one solar conundrum may have been solved and a theory originally …