Lifeboat Foundation

The findings could help advance high-res imaging of viruses and bacteria.

Astronomers at The University of Texas at Austin and Harvard University have put a basic principle of black holes to the test, showing that matter completely vanishes when pulled in. Their results constitute another successful test for Albert Einstein’s General Theory of Relativity.

Most scientists agree that black holes, cosmic entities of such great gravity that nothing can escape their grip, are surrounded by a so-called event horizon. Once matter or energy gets close enough to the black hole, it cannot escape—it will be pulled in. Though widely believed, the existence of event horizons has not been proved.

“Our whole point here is to turn this idea of an event horizon into an experimental science, and find out if event horizons really do exist or not,” said Pawan Kumar, a professor of astrophysics at The University of Texas at Austin.

The new work addresses not only what dark energy is but why the rate of universal expansion has the value it does.

“Everybody wants to know what dark energy is,” Wang told Live Science. “I reconsidered this question more carefully,” from the perspective of the universe’s energy density.

Wang and his colleagues assumed that modern quantum field theory was correct about the energy density being very large, but that the vacuum fluctuations, or the movements of empty space, were very large on tiny scales, near what is called the Planck length, or 1.62 × 10 ^ minus 35 meters. That’s so small that a proton is 100 million trillion times bigger.

Continue reading “Dark Energy May Lurk in the Nothingness of Space” »

May 25 (UPI) — In 2015, a star tracked by astronomers since 2009, suddenly disappeared. New research suggests the star collapsed and became a black hole, but avoided the explosive violence of a supernova.

The discovery, detailed in the Monthly Notices of the Royal Astronomical Society, could explain why many of the universe’s most massive stars die without a parting explosion.

Continue reading “Astronomers witness star’s death, birth of new black hole” »

Answer by Viktor T. Toth, IT pro, part-time physicist, on Quora:

Whenever you think about time dilation in relativity theory, keep in mind that the theory is not about you. It is about what others see. As far as you are concerned, no matter where you are or how you move, time will always appear to pass as it always does.

The coders of tomorrow may be bug-checking the multiverse.

Researchers have proposed a method for detecting exotic events in physics by looking for the scars they leave behind on the fabric of space.

By identifying how objects like cosmic strings or evaporating black holes leave behind memories of their existence on the Universe, it might be possible to move some rather strange phenomena from theoretical to empirical science.

It all comes down to an effect of general relativity called gravitational-wave memory, which is the distortion left behind as space is stretched and relaxed by a massive object.

Continue reading “Gravitational Waves Are Permanently Warping The Fabric of Space-Time” »

Experts suggest that the cooler area could be caused by our universe colliding with another.

If true, this could provide evidence for the multiverse theory.

Continue reading “Is our universe merely one of an infinite number?” »

RELATED: Building Blocks for Life Found in Rosetta’s Comet

“Understanding the origin of molecular oxygen in space is important for the evolution of the Universe and the origin of life on Earth,” the researchers wrote.

The finding muddies the waters in how detecting oxygen in the atmospheres of exoplanets might not necessarily point to life, as this abiotic process means that oxygen can be produced in space without the need for life. The researchers say this finding might influence how researchers search for signs of life on exoplanets in the future.

Continue reading “Comet 67P Found to Be Producing Its Own Oxygen in Deep Space” »