Physics

Stronger gravity in the early universe may solve a cosmological conundrum

Stronger gravity in the early universe may solve a cosmological conundrum

The inflationary epoch that caused our universe to rapidly expand in its earliest moments may be connected to the modern era of dark energy, thanks to a phantom component of the cosmos that changes the strength of gravity as the universe evolves, a physicist proposes in a new paper. The traditional approach to understanding gravity …

Stronger gravity in the early universe may solve a cosmological conundrum Read More »

Europe and US set for scorching, dry summer, scientists say

Europe and US set for scorching, dry summer, scientists say

Credit: Unsplash/CC0 Public Domain Europe and parts of the US are set for a sweltering and dry summer this year, posing risks for crops and increasing demand for energy for cooling at a time when prices of commodities are already running high. Scientists at the Copernicus Climate Change Service, who published their seasonal outlook on …

Europe and US set for scorching, dry summer, scientists say Read More »

A Black Hole Might've Been Kicked Out of Its Own Galaxy

Black Hole Collision Might’ve Sent Invisible Monster Hurtling Through Space

For the past few days, we’ve all been fawning over the glorious new image of our Milky Way’s black hole. But for a moment, we might want to pause and pay our respects to a lonely chasm across the universe that might’ve been booted from its own galaxy. On Thursday — the same day the …

Black Hole Collision Might’ve Sent Invisible Monster Hurtling Through Space Read More »

Exploding Supernova Concept

New Clues to Understanding the Mysterious Origin of Supernovae

Scientists from the RIKEN Cluster for Pioneering Research have used computer modeling to show how a hypothesized type of supernova would evolve on the scale of thousands of years, giving researchers a way to look for examples of supernovae of this model, known as “D6.” Supernovae are important for cosmology because one type, Ia, is …

New Clues to Understanding the Mysterious Origin of Supernovae Read More »

How fears of electromagnetic radiation spawned a snake-oil industry

How fears of electromagnetic radiation spawned a snake-oil industry

The pager-sized stainless steel Springlife polarizer looks like not much more than a small metal box. The “sound healing energy” website that sells it claims that it’s made up of “special minerals and Earth substances” that attract and soak up “specific wavelengths of cosmic radiation.” It’s advertised as a way to block electromagnetic fields, though …

How fears of electromagnetic radiation spawned a snake-oil industry Read More »

Superconducting X-Ray Laser in California Achieves Temperatures Colder Than Space

Superconducting X-Ray Laser in California Achieves Temperatures Colder Than Space

A particle accelerator that slams electrons together here on Earth has achieved temperatures colder than those of outer space. Using the X-ray free-electron laser at the Department of Energy’s SLAC National Accelerator Laboratory – part of an upgrade project to the Linac Coherent Light Source (LCLS), called LCLS II – scientists chilled liquid helium to …

Superconducting X-Ray Laser in California Achieves Temperatures Colder Than Space Read More »

Doctor Strange in the Multiverse of Madness

What Is the Multiverse? Is It Just Science Fiction, or Does It Really Exist?

Doctor Strange in the Multiverse of Madness. Credit: Marvel Studios Whether you need a new villain or an old Spider-Man, your sci-fi movie will sound more scientifically credible if you use the word multiverse. The Marvel multiverse puts multiple different versions of our universe “out there,” somewhere. In these films, with the right blend of …

What Is the Multiverse? Is It Just Science Fiction, or Does It Really Exist? Read More »

Physicist says there's one type of time travel that's actually possible

Physicist says there’s one type of time travel that’s actually possible

According to scientists, time travel is actually not as far-fetched a question as you might think. A professor of physics and mathematics at Columbia University, Brian Greene said that we might be able to jump forward after all. “Time travel to the future? Definitely possible,” Insider told. “We know how to do it because Einstein …

Physicist says there’s one type of time travel that’s actually possible Read More »

An Elusive Gravity Signal Could Mean Faster Earthquake Warnings

An Elusive Gravity Signal Could Mean Faster Earthquake Warnings

Seismic waves from a big quake are easy to see—think of the classic image of a seismograph, pencil scratching out telltale waves on a rotating paper as the tremor arrives. Even to highly trained eyes, PEGS are just squiggles, indistinguishable from the noise. It’s hard to prove they’re there. In 2017, early identifications of PEGS …

An Elusive Gravity Signal Could Mean Faster Earthquake Warnings Read More »