#electromagnetic-waves tag

OMG science

A boom in gravitational waves leaves scientists with more questions than answers

OMG science

Newly discovered ripples in spacetime put Einstein's general relativity to the test

2 weeks ago

Ask Ethan: Do gravitational waves redshift like light does?

Gravitational waves, like light waves, can experience redshifts and blueshifts due to various intervening effects during their transit.

A boom in gravitational waves leaves scientists with more questions than answers

A global network of gravitational-wave observatories has detected 218 candidate events, revealing complex structures in cosmic mergers and providing unprecedented insights into the universe.

Newly discovered ripples in spacetime put Einstein's general relativity to the test

A global network of gravitational wave observatories has more than doubled detections of cosmic collisions, revealing a universe filled with black holes, neutron stars, and their mergers with unprecedented variety and characteristics.

more#gravitational-waves

fromNature

2 weeks ago

Entanglement and electronic coherence in attosecond molecular photoionization - Nature

Attosecond pulses from high-harmonic generation create entangled ion-photoelectron systems, enabling observation of coherent dynamics in quantum states.

#superluminous-supernovae

3 weeks ago

Gravity and quantum physics are fundamentally incompatible

General Relativity has yet to let us down. Its success rate is 100%, from tabletop experiments to gravitational lensing and the formation of the great cosmic web.

OMG science

fromArs Technica

Magnetars drag spacetime to power superluminous supernovae

Frame-dragging from rapidly spinning magnetars explains the irregular light patterns observed in superluminous supernovae, resolving a long-standing discrepancy between theory and observations.

Science

The universe's brightest supernovae are turbocharged by newborn magnetars

fromArs Technica

Magnetars drag spacetime to power superluminous supernovae

Frame-dragging from rapidly spinning magnetars explains the irregular light patterns observed in superluminous supernovae, resolving a long-standing discrepancy between theory and observations.

more#superluminous-supernovae

Science

The universe's brightest supernovae are turbocharged by newborn magnetars

fromMail Online

Astronomers watch the birth of a magnetar for the first time

Astronomers observed the birth of a magnetar, an extremely dense neutron star with the universe's most powerful magnetic fields, through a superluminous supernova's unusual flickering light pattern over 200 days.

Ask Ethan: Do signals degrade as they travel through space?

Signals from distant cosmic sources change during transmission but do not deteriorate; instead, they undergo alterations that scientists can typically account for and correct.

fromMail Online

Scientists find origin of 3 strange signals from heart of Milky Way

Excited dark matter explains mysterious energy signals emanating from the Milky Way's center that conventional astrophysical events cannot account for.

fromArs Technica

Photons that aren't actually there influence superconductivity

Virtual photons from quantum fields can degrade superconductor performance, providing insights into quantum mechanics and superconductivity behavior.

fromFuturism

Astronomers Spot Huge Microwave Laser Blasting Into Space

This system is truly extraordinary. We're seeing the radio equivalent of a laser halfway across the universe. Fundamentally, masers and lasers are focused beams of light in the same frequency. In the realm of astrophysics, these can arise from clouds of dust being excited into a higher energy state from the light emitted by other sources, like stars and black holes.

OMG science

2 months ago

Physicists trace particles back to the quantum vacuum

RHIC experiments traced virtual particle pairs evolving into real, spin-aligned particle pairs, indicating vacuum fluctuations can produce correlated spin descendants.

2 months ago

The most underappreciated achievement in theoretical physics

Modern physics explains luminous matter, black holes, gravity, cosmic expansion, and particle interactions through the Standard Model, quantum field theory, and General Relativity.