Strange supersolid state of matter created in new dimension

There are many exotic states of matter besides the basics of solid, liquid, gas and plasma. One of these, known as a supersolid, was confirmed a few years ago, and now University of Innsbruck scientists have created it in a new two-dimensional form.

Source of Article

Continue Reading Strange supersolid state of matter created in new dimension

2D quantum crystal sensor could hunt for dark matter particles

Dark matter should be all around us, but the stuff is frustratingly elusive. Now physicists at NIST have developed a new sensor that could help us detect certain hypothetical dark matter particles, using a two-dimensional quantum crystal.

Source of Article

Continue Reading 2D quantum crystal sensor could hunt for dark matter particles

Laser pincers generate antimatter by recreating neutron star conditions

Physicists have outlined a relatively simple new way to create antimatter, by firing two lasers at each other to reproduce the conditions near a neutron star, converting light into matter and antimatter. Doing so could unlock cosmological mysteries.

Source of Article

Continue Reading Laser pincers generate antimatter by recreating neutron star conditions

Dark energy: The eerie force accelerating the expansion of the universe

Why is the expansion of the universe accelerating? The leading hypothesis is a repellent force that astrophysicists refer to as “dark energy." But how does it work? What does it mean for our future? And how sure are we that it even exists?

Source of Article

Continue Reading Dark energy: The eerie force accelerating the expansion of the universe

Dark matter or cooling “primordial soup” could create gravitational waves

In January scientists reported the detection of very low-frequency gravitational waves. Now astrophysicists have investigated two possible sources – the universe cooling down after the Big Bang, and a field of particles that could be dark matter.

Source of Article

Continue Reading Dark matter or cooling “primordial soup” could create gravitational waves

New theoretical warp drive design clears “negative energy” barrier

Faster-than-light “warp drives” may be theoretically possible, but they usually involve exotic physics well out of our reach. Now an astrophysicist has outlined a hypothetical design that could allow FTL travel using conventional physics.

Source of Article

Continue Reading New theoretical warp drive design clears “negative energy” barrier

Unexplained X-ray signals from neutron stars hint at “ghost” particles

Astronomers have detected a strange signal coming from neutron stars that could be a new elementary particle. An unexplained excess of X-rays hints at axions, hypothetical “ghost” particles that could solve several long-standing physics puzzles.

Source of Article

Continue Reading Unexplained X-ray signals from neutron stars hint at “ghost” particles

Astronomers may have detected background ripples in spacetime itself

The gravitational waves we’ve detected so far have been like tsunamis in the spacetime sea. Now, a 13-year survey of light from pulsars scattered across the galaxy may have revealed the first hints of gentle gravitational wave background signals.

Source of Article

Continue Reading Astronomers may have detected background ripples in spacetime itself

Neutron stars scanned for signals of dark matter turning into light

Dark matter should outnumber regular matter five to one, yet it remains frustratingly elusive. But there might be ways to spot it, and now astronomers have scanned neutron stars for telltale signals of a proposed dark matter particle called an axion.

Source of Article

Continue Reading Neutron stars scanned for signals of dark matter turning into light