Tag Archive for 'Spacetime curvature'

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

Time Has Three Dimensions, New Theory Says

Jun 23, 2025 by News Staff

A new theory by University of Alaska Fairbanks scientist Gunther Kletetschka argues that time comes in three dimensions rather than just the single one...

Clough et al. proposed a formalism for studying warp drive spacetimes dynamically and produced the first fully consistent numerical-relativity waveforms for the collapse of a warp drive bubble.

Warp Drive Collapse Should Generate Gravitational Waves, Theoretical Astrophysicists Claim

Jul 31, 2024 by News Staff

The principle idea behind a warp drive is that instead of exceeding the speed of light directly in a local reference frame, a ‘warp bubble’ could traverse...

NASA’s Fermi Gamma-ray Space Telescope (top left) and the IceCube Neutrino Observatory (sensor strings, bottom). Image credit: NASA / Fermi / Aurore Simonnet, Sonoma State University.

Could Quantum Properties of Spacetime Slow Down Neutrinos?

Jun 13, 2023 by Enrico de Lazaro

Using data from NASA’s Fermi Gamma-ray Space Telescope and the IceCube Neutrino Observatory, astrophysicists have found preliminary evidence for gamma-ray...

An artist’s rendition of a giant star in orbit around a low-mass black hole. Image credit: Sci-News.com.

All Large Objects in Universe Will Eventually Evaporate, Astrophysicists Say

Jun 5, 2023 by News Staff

According to quantum mechanics, a vacuum state is populated by virtual particle pairs undergoing spontaneous creation and annihilation processes. These...

This artist's concept shows what the very early Universe might have looked like. Image credit: NASA / JPL-Caltech / R. Hurt / SSC.

Gravity May Have Saved Very Early Universe – Study

Nov 20, 2014 by News Staff

A team of physicists from Denmark, Finland and the United Kingdom, led by Dr Matti Herranen University of Copenhagen, says that the spacetime curvature...