Dark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid ‘having to live with it?’ Read more ..read more

Explorations in dark matter are advancing with new experimental techniques designed to detect axions, leveraging advanced technology and interdisciplinary collaboration to uncover the secrets of this elusive component of the cosmos. A ghost is haunting our universe. This has been known in astronomy and cosmology for decades. Observations suggest that about 85% of all the matter in the universe is mysterious and invisible. These two qualities are reflected in its name: dark matter. Several experiments have aimed to unveil what it’s made of, but despite decades of searching, scientists have com ..read more

Researchers utilizing the European Gaia spacecraft have discovered a black hole in a binary system, located 1,500 light-years away and weighing 33 times the mass of the sun, making it the heaviest known in the Milky Way. The black hole, discovered using data from the European Gaia spacecraft, is more than three times heavier than the known black holes in our galaxy. An international team of researchers, with the participation of researchers from Tel Aviv University (TAU) led by Prof. Tsevi Mazeh, discovered a star that orbits a black hole 33 times heavier than the sun’s mass, and lies 1,500 ..read more

You can see shockwaves rippling through the remnants. Read more ..read more

It turns out that such cannibalism cannot explain the missing pulsar problem, according to Caizzo. “We found that in our current model PBHs are not able to disrupt these objects but this is only considering our simplified model of 2 body interactions,” he said. It doesn’t rule out the existence of PHBs, only that in specific instances, such capture isn’t happening. So, what’s left to examine? If there are PHBs in the cores and they’re merging, no one’s seen them yet. But, the center of the Galaxy is a busy place. A lot of bodies crowd the central parsecs. You have to calculate the effects of ..read more

Most models for the overall shape and geometry of the Universe—including some exotic ones—are compatible with the latest cosmic observations. Is the Universe simply connected like a sphere or does it contain holes like a doughnut or a more complicated structure? The topology of the Universe—that is, its overall geometry—remains far from settled, according to a collaboration of cosmologists. Despite past claims that observations of the cosmic microwave background (CMB) rule out various topologies, the researchers contend that many of these shapes, including some strange ones, have not been con ..read more

Are you ready for the “Big Crunch?” Read more ..read more

In the 20th century, many options abounded as to our cosmic origins. Today, only the Big Bang survives, thanks to this critical evidence. Read more ..read more

Researchers from the University of Portsmouth’s Institute of Cosmology and Gravitation (ICG) have helped to detect a remarkable gravitational-wave signal, which could hold the key to solving a cosmic mystery. The discovery is from the latest set of results announced by the LIGO-Virgo-KAGRA collaboration, which comprises more than 1,600 scientists from around the world, including members of the ICG, that seeks to detect gravitational waves and use them for exploration of fundamentals of science. In May 2023, shortly after the start of the fourth LIGO-Virgo-KAGRA observing run, the LIGO Livings ..read more

Sir Roger Penrose proposes that the universe undergoes repeated cycles of expansion, decay, and rebirth, challenging the traditional notion of a singular Big Bang origin. Renowned physicist Sir Roger Penrose, hailing from the University of Oxford and a co-recipient of the 2020 Nobel Prize in Physics, posits a fascinating theory regarding the universe’s cyclical nature. Contrary to prevailing notions, Penrose suggests that our universe has undergone numerous Big Bang events, with another impending in the future. Penrose’s Nobel-winning contributions revolve around advancing mathematical framew ..read more