The rate at which the universe is expanding is accelerating across the cosmos, driven by a mysterious force known as dark energy. However, new research suggests that this may not be the case at the edges of black holes. Rather than suggesting that dark energy does not act at the boundaries of black holes, this … Read more
The rate at which the universe is expanding is accelerating across the cosmos, driven by a mysterious force known as dark energy. However, new research suggests that this may not be the case at the edges of black holes. Rather than suggesting that dark energy does not act at the boundaries of black holes, this … Read more
Local residents near Padstow in Cornwall told the British Coastguard to ‘take charge’ of the move The British coastguard has been criticised for attempting to ban families from digging holes on a popular Cornish beach. Residents living near the upmarket Padstow in Cornwall have called on emergency services to ‘take action’ after they complained on … Read more
Artist’s impression of the bright core region of a quasar, an active galaxy. The supermassive black hole at the center is surrounded by a bright disk of gas and dust. The dust component further away can obscure the view of the interior and shines mainly in the mid-infrared range, light that can be analyzed by … Read more
This still from the simulation shows a supermassive black hole, or quasar, surrounded by a swirling disk of material called an accretion disk. Credit: Caltech/Phil Hopkins group A team of astrophysicists led by Caltech has for the first time successfully simulated the journey of primordial gas from the early universe to the stage where it … Read more
Forget the “little green men” — it’s the “little red dots” in the early universe that caught the attention of the James Webb Space Telescope (JWST). The strange red bodies, scientists say, hide stars that models suggest are “too old” to have existed in early cosmic times and black holes thousands of times more massive … Read more
Scientists have discovered that unusually large black holes appear to be absent from the Milky Way’s diffuse outer halo. The discovery could spell bad news for theories that suggest the most mysterious form of “stuff” in the universe, dark matter, consists of primordial black holes that formed in the first moments after the Big Bang. … Read more
Recent studies have dealt a major blow to the hypothesis that primordial black holes could be responsible for dark matter, shifting the focus of scientific research to alternative explanations. Overview of the research Two pivotal studies have explored the possibility of this original black holeswhich is believed to have formed in the early universe, could … Read more
Credit: AI-generated image A physicist who studies black holes has discovered that in an expanding universe, Einstein’s equations require that the rate of expansion of the universe at the event horizon of each black hole must be constant, and the same for all black holes. This in turn means that the only energy on the … Read more
Artist’s impression of a microlensing event caused by a black hole observed from Earth towards the Large Magellanic Cloud. The light from a background star in the GMC is diffracted by a putative primordial black hole (lens) in the Milky Way’s halo and magnified when observed from Earth. Microlensing produces very characteristic variations in the … Read more