A low intergalactic grumbling is emanating from deep space, according to scientists. And no, it’s not the start of the end times. Astronomers say they detected the first-of-their-kind low frequency ripples, described as a “cosmic bass note” of gravitational waves, which is thought to be caused by supermassive black holes merging across the universe. The discovery could unveil new secrets about how the monster black holes, which lie at the centre of galaxies, work. The objects are millions – possibly billions – the times the mass of the sun, but little is known about them because no light can escape. Sign up to our free Indy100 weekly newsletter “This is huge news,” said Dr Stephen Taylor, chair of the North American Nanohertz Observatory for Gravitational Waves (Nanograv) consortium, which led the team which made the discovery, and an astrophysicist at Nashville’s Vanderbilt University. Dr Michael Keith, of Jodrell Bank Centre for Astrophysics and a member of the team which helped find the signal, added: “The results presented today mark the beginning of a new journey into the universe to unveil some of its unsolved mysteries. “We are incredibly excited that after decades of work by hundreds of astronomers and physicists around the world, we are finally seeing the signature of gravitational waves from the distant universe.” Before the discovery, scientists have only captured short “chirps” of gravitational waves which are linked to the massive objects merging. But the “bass note” comes after they tuned into a deeper range of frequencies. It is thought to be caused by a single complete gravitational wave travelling at the speed of light. Astronomers think it is produced by the entire population of supermassive black hole binaries from over roughly the last 8bn years of the universe. “We think each pair contributes a little wave, which is added to a little wave of another, and all together that is what we may see right now – a sort of murmur of the entire population,” said Prof Alberto Vecchio of the University of Birmingham and a member of the European Pulsar Timing Array. Prof Andrew Pontzen, a cosmologist at University College London, added: “It’s not often that we get a glimpse of the universe through a totally new lens, but after 15 years of patient work, Nanograv seems to be providing just that. It’s tremendously exciting to see initial evidence for these waves, which will eventually teach us an enormous amount about supermassive black holes, hundreds of millions of times the mass of the sun.” The findings were published on 29 June by Astrophysical Journal Letters. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

For years people have been looking to the skies for signs of alien life - but maybe, they should have been looking at the bottom of the ocean this whole time. A Harvard physicist has claimed that parts of an alien 'spacecraft' could have been uncovered under the sea. Professor Avi Loeb set off on a search along the bottom of the Pacific Ocean and found 50 iron pieces which originated from the IM1 meteor. IM1 crashed off the coast of Papua New Guinea and Leob believes it could contain key information in the search for life out there in the universe, saying he hasn’t discounted the idea of the pieces being evidence of a “spacecraft” from an “extraterrestrial technological civilization” which crashlanded on Earth. Sign up to our free Indy100 weekly newsletter Loeb is currently the head of Harvard’s Galileo Project, focusing on the search for aliens, and he said the fragments they found must have come from “a natural environment different from the solar system, or an extraterrestrial technological civilization.” Speaking to Fox News Digital, Loeb detailed his thoughts on the origins of the meteor fragments by saying: “Given IM1's high speed and anomalous material strength, its source must have been a natural environment different from the solar system, or an extraterrestrial technological civilization.” He added that IM1 “is actually tougher and has material strength that is higher than all the space rocks that were catalogued by NASA. That makes it quite unusual.” Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Last year, a group of Norwegian auditors touched down in a remote corner of Iceland to meet with

It’s well known that all humans alive today can be traced back to a common ancestor but a study may have found where that ancestor originates. Researchers at the University of Oxford’s Big Data Institute mapped the entirety of genetic relationships among humans to create the largest human family tree ever. By combining modern and ancient human genomes data from eight different databases, the researchers were able to create a massive family tree. This allowed them to see how a person’s genetic sequence relates to another using the points of the genome. Sign up for our free Indy100 weekly newsletter “Essentially, we are reconstructing the genomes of our ancestors and using them to form a vast network of relationships,” Lead author Dr Anthony Wilder Wohns said. “We can then estimate when and where these ancestors lived.” Where they lived? Sudan, Africa. Dr Wohns told Reuters, "The very earliest ancestors we identify trace back in time to a geographic location that is in modern Sudan. “These ancestors lived up to and over 1 million years ago—which is much older than current estimates for the age of Homo sapiens—250,000 to 300,000 years ago. So bits of our genome have been inherited from individuals who we wouldn’t recognize as modern humans," Dr Wohns said. Researchers used 3,609 individual genome sequences from 215 populations and samples that ranged from 1,000s to over 100,000 years. By using a new method to compile the data, algorithms were able to predict where common ancestors were in evolutionary trees to explain some patterns of genetic variation. The results were a network of almost 27 million ancestors. “The power of our approach is that it makes very few assumptions about the underlying data and can also include both modern and ancient DNA samples,” Dr Wohns says. Not only does the data help us understand human geology better but the new method could help in other research, like medicine. “The underlying method could have widespread applications in medical research, for instance identifying genetic predictors of disease risk," Dr Wohns added. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Scientists have managed to simulate their very own black hole in their lab and witnessed how it began to glow. The black hole event horizon was created by a team of physicists from the University of Amsterdam, who used a chain of atoms in a single file to gain further understanding about the behaviour of a black hole. Its creation managed to prove Stephen Hawking's theory from 1974 where the black hole emitted a rare form of radiation. Sign up to our free Indy100 weekly newsletter They studied the properties of Hawking radiation through the creation of a black hole analog in the lab. According to Science Alert, Hawking radiation happens when "particles born from disturbances in the quantum fluctuations caused by the black hole's break in spacetime." The fact that the radiation exhibits a glow itself is in a strange space anomaly, as the event horizon of a black hole is supposed to be where neither light nor matter is able to get out. We all learn about the strength of a black hole in science class – and how we would all be inevitably sucked in as a result. This is possible due to its density within a certain range of the centre, so even an attempt at travelling beyond light speed (or any velocity in the universe for the matter) would not make this unavoidable. The fake black hole event also caused a rise in temperature that matched theoretical expectations of an equivalent black hole system, - but only when part of the chain extended beyond the event horizon, Science Alert reported. As a result, it is believed perhaps this entanglement of particles that straddle the event horizon plays a big role in generating Hawking radiation. Under simulations that began by mimicking spacetime thought of as "flat," scientists say the radiation was only thermal for a certain range of 'hop amplitudes'. So there may be certain situations where Hawking radiation can emit thermally - and could only be the case where gravity causes a change in the warp of space-time. "This can open a venue for exploring fundamental quantum-mechanical aspects alongside gravity and curved spacetimes in various condensed matter settings," the scientists wrote in their paper published by Physical Review Research. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings

The Moon has been a subject of awe and fascination for millennia, with its shape-shifting powers and enigmatic dark side. And though it’s the one celestial body on which man has taken (small) steps, we still have big leaps to go in understanding its potential and uncovering its secrets. However, one hidden feature of the Moon has been unearthed by scientists and it’s very, very big, and very, very heavy. Buried beneath its South Pole-Aitken basin – one of the largest preserved craters in the Solar System – is a structure which weighs at least 2.18 billion kilogrammes and measures more than 300km (186 miles) in depth and 2,000km (1,243 miles) in length. Sign up for our free Indy100 weekly newsletter The researchers who made the discovery, all based in the US, posited that the “anomaly” could be made out of metal from the core of an asteroid or oxides from the crystallisation of a magma ocean. "One of the explanations of this extra mass is that the metal from the asteroid that formed this crater is still embedded in the Moon's mantle,” lead author Peter B. James, from Houston’s Baylor University, said in a statement shared with IFLScience. Illustrating just how gigantic this thing is, he went on: "Imagine taking a pile of metal five times larger than the Big Island of Hawaii and burying it underground. That's roughly how much unexpected mass we detected.” The groundbreaking finding was made thanks to NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission, which measures changes in the Moon’s gravitational field. Data collected by GRAIL can then be used to study the internal composition of our cratered companion. The South Pole-Aitken Basin has been at the centre of numerous investigations because of just how unique it is. The region offers clues both on the interior composition of our closest satellite and its history, and who knows what other mysteries it holds... Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Artificial intelligence has the potential to accelerate world-altering innovations such as “limitless” clean energy and better meteorological models

President Joe Biden has begun using a continuous positive airway pressure, or CPAP, machine to treat longstanding sleep

Would you sign up to live in isolation for a year, all in the name of furthering scientific research? Probably not, we’re guessing, but that’s exactly what four NASA volunteers have agreed to do over the next 12 months. The participants will live in an environment created to simulate conditions on the surface of Mars as part of NASA's Crew Health and Performance Exploration Analog for 378 days. The people involved are research scientist Kelly Haston, structural engineer Ross Brockwell, emergency medicine physician Nathan Jones and US Navy microbiologist Anca Selariu. Sign up to our free Indy100 weekly newsletter The simulation has been built at the Johnson Space Center in Houston, Texas, and will see the four volunteers undertake a series of tasks as part of the exercise. Data collected over the next 12 months will help to inform future missions to send astronauts to Mars. During that time, the guests will take part in activities such as crop growing as well as simulated spacewalks and other operations. The 3D-printed hub they’ll spend their time in contains a kitchen, sleeping areas, two bathrooms as well as work and recreation spaces. The mission will also see the guests faced with simulated obstacles, which are designed to test responses to equipment failure, communication delays and other issues. Speaking at a recent briefing, the mission's principal investigator at NASA Grace Douglas said: “Thank you all for your dedication to exploration. Our best wishes go with you." Haston also spoke, calling her fellow participants an "amazing group of dedicated individuals who feel very passionate about space exploration and science." "The crew has worked so hard this month to get ready for this mission," Haston added. "It has been very special to be a part of such a tremendous group of scientists and specialists from a diverse set of backgrounds working together to bring CHAPEA 1, the first of three missions, to reality." Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Ryan Seacrest signed a multiyear agreement with Sony Pictures Television to become the new host of Wheel of

Scientists are raising concerns about a supervolcano in Italy which is “on the brink” of erupting for the first time since 1538. Campi Flegrei, also known as Phlegraean Fields, is an area of supervolcanic calderas in Naples, Italy. If it did erupt again, it could plunge the world into a global winter. An eruption of the scale last seen in 1538 would also result in 100-feet tsunamis and the expulsion of volcanic gases into the stratosphere. The results would kill wildlife and crops across the world, and the possible impacts have been explored in the new journal Communications Earth & Environment. Sign up to our free Indy100 weekly newsletter There’s been an increase in the number of earthquakes in the surrounding area over recent times, which has proved concerning viewing for scientists. New research was undertaken by members of Italy’s National Institute of Geophysics and Volcanology (INGV) and University College London (UCL). "Our new study confirms that Campi Flegrei is moving closer to rupture,” said lead author Professor Christopher Kilburn (UCL Earth Sciences). Mauro Antonio Di Vito, director of the INGV’s Vesuvius Observatory, expressed concern about the evacuation from the local area. He added: "These areas have been urbanised without considering the fragility. Buildings need to be better structured and we need a cultural change to really encourage people to do this." Stefano Carlino, also of Vesuvius Observatory, added: "It's the same for all volcanoes that have been quiet for generations. Campi Flegrei may settle into a new routine of gently rising and subsiding, as seen at similar volcanoes around the world, or simply return to rest. "We can't yet say for sure what will happen. The important point is to be prepared for all outcomes." Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Rumours of a global internet outage due to a severe solar storm have been swirling online, but how true are they? With plenty of us relying on internet access on a daily basis for our work, entertainment and communication needs, the rumour of an internet apocalypse has left many worried. Throughout June, the possibility that we could lose internet for months has been spreading. But, the very possibility first gained public attention back in 2021 when computer scientist Sangeetha Abdu Jyothi at the University of California Irvine warned that a catastrophic solar storm could occur within the next 10 years. Sign up to our free Indy100 weekly newsletter It seems the space agency NASA is taking the risk seriously and launched the Parker Solar Probe (PSP) which revealed clues about the sun’s atmosphere after successfully navigating through the powerful solar winds generated there. What is a solar storm and how could it cause an internet apocalypse? A solar storm refers to the atmospheric effects we experience on Earth that originate from the sun, typically caused by solar flares. During such storms, a stream of an electromagnetic field is directed towards Earth which causes the aurora borealis. NASA believes solar storms run on an 11-year cycle with their frequency varying. Their severity can also vary, with stronger geomagnetic storms causing interruptions to satellite, radio and internet functions. A 2011 geomagnetic storm interrupted radio signals in South China, meanwhile in 1859 a particularly intense storm caused auroras to appear in the skies all around the world. Should such an event strike today, there could be a worldwide blackout causing disruption for months, with its effects predicted to be 20 times that of a catastrophic hurricane due to its impact on the supply chain of essentials like foods and medication. Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.