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

Astronomers have detected a strange signal coming from a group of neutron stars that could be the fingerprints of a long-sought elementary particle – and maybe even dark matter. An unexplained excess of X-rays hints at axions, hypothetical “ghost” part… 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, but it’s believed that gentle ripples should also pervade the universe. Now, a 13-year survey of light from pulsars scattered across the galaxy may have reveale… Continue reading Astronomers may have detected background ripples in spacetime itself

New quantum particle may have been accidentally discovered

By definition metals and insulators are very different – but now Princeton physicists have accidentally discovered an unexpected quantum behavior in an insulator that was thought to be unique to metals. The find suggests a brand new type of quantum par… Continue reading New quantum particle may have been accidentally discovered

Talking mummies and time travel rules: Strangest science stories of 2020

Curing cancer is a noble goal and all, but sometimes scientists just want to see what happens when you give octopuses ecstasy. From medical marvels to wild speculations about time travel, aliens and the end of the universe, New Atlas revisits some of 2… Continue reading Talking mummies and time travel rules: Strangest science stories of 2020

Neutron stars scanned for signals of dark matter turning into light

Dark matter is thought to outnumber the regular stuff by a ratio of five to one, yet it remains frustratingly elusive. But there might be ways to potentially spot it, if you know where to look, and now astronomers have scanned neutron stars for telltal… Continue reading Neutron stars scanned for signals of dark matter turning into light

Evidence of “modified gravity” strengthens dark matter alternative

Dark matter is currently the most widely accepted hypothesis for explaining some of the weirdness we see in the cosmos – but it’s not the only possibility. Now, a team of astronomers has discovered evidence in over 150 galaxies for a long-standing alte… Continue reading Evidence of “modified gravity” strengthens dark matter alternative

Quantum-entangled atomic clock keeps spookily accurate time

Atomic clocks are the most precise timekeepers we have today, with the best ones keeping time to within one second in 15 billion years. But there’s always room for improvement, as researchers at MIT have now demonstrated with a new quantum-entangled at… Continue reading Quantum-entangled atomic clock keeps spookily accurate time

Astronomers precisely trace distance to oldest and farthest known galaxy

Astronomers have more accurately measured the distance to the oldest and farthest galaxy ever detected. The light they’re seeing left the galaxy, known as GN-z11, around 13.4 billion years ago, when the universe was a cosmic toddler, and this galaxy ma… Continue reading Astronomers precisely trace distance to oldest and farthest known galaxy

Missing dark matter mystery reveals a galaxy entering death spiral

Astronomers are a step closer to solving a cosmic mystery, thanks to new Hubble data. Observations from the space telescope show a dwarf galaxy previously found to be missing most of its dark matter is being stripped of this matter by a larger nearby g… Continue reading Missing dark matter mystery reveals a galaxy entering death spiral

“Fifth state of matter” used to make new type of superconductor

Superconductors – materials in which electricity flows without any resistance whatsoever – could be extremely useful for future electronics. Now, engineers at the University of Tokyo have managed to create a superconductor out of a state of matter call… Continue reading “Fifth state of matter” used to make new type of superconductor