List of All Articles with Tag 'spac'

Scientists have spotted a shocking number of galaxies like our own in the early universe. The finding will prompt us to entirely rethink our understanding of how the universe formed the structures that surround us. Looking deep into space, scientists found that the galaxies we see in the early universe are much more like our own Milky Way than was thought possible. A team of international researchers including those at The University of Manchester and University of Victoria in Canada, used the James Webb Space Telescope (JWST) to discover that galaxies like the Milky Way are 10 times more common than what was believed based on previous observations with the Hubble Space Telescope. Many of these galaxies formed some 10 billion years ago or longer, going far back into the history of the universe. The Milky Way is a typical disk galaxy, with a shape similar to a pancake or compact disc, rotating about its centre and often containing spiral arms. These galaxies might be the kind where life can develop given the nature of their formation history, experts suggest. Astronomers previously considered these types of galaxies too fragile to exist in the early universe when galaxy mergers were more common, destroying what was thought to be their delicate shapes. Christopher Conselice, professor of extragalactic astronomy at The University of Manchester, said: “Using the Hubble Space Telescope we thought that disc galaxies were almost non-existent until the universe was about six billion years old, these new JWST results push the time these Milky Way-like galaxies form to almost the beginning of the universe.” He added: “These JWST results show that disc galaxies like our own Milky Way, are the most common type of galaxy in the universe. “This implies that most stars exist and form within these galaxies which is changing our complete understanding of how galaxy formation occurs. “These results also suggest important questions about dark matter in the early universe which we know very little about.” “Based on our results, astronomers must rethink our understanding of the formation of the first galaxies and how galaxy evolution occurred over the past 10 billion years.” The researchers say their findings, published in the Astrophysical Journal, completely overturn the existing understanding of how scientists think the universe evolves, and the scientists say new ideas need to be considered. Lead author Leonardo Ferreira, from the University of Victoria, said: “For over 30 years it was thought that these disc galaxies were rare in the early universe due to the common violent encounters that galaxies undergo. “The fact that JWST finds so many is another sign of the power of this instrument and that the structures of galaxies form earlier in the universe, much earlier in fact, than anyone had anticipated.” The improved technology of JWST allows astronomers to see the true structure of these galaxies for the first time. A paper describing the findings, ‘The JWST Hubble Sequence: The Rest-Frame Optical Evolution of Galaxy Structure at 1.5 The Astrophysical Journal. Additional reporting by agencies Read More Nasa just delivered a piece of a distant asteroid to Earth Nasa lands Bennu asteroid samples back on Earth Pieces of a distant asteroid are about to fall to Earth Nasa just delivered a piece of a distant asteroid to Earth Nasa lands Bennu asteroid samples back on Earth Pieces of a distant asteroid are about to fall to Earth

By Steve Gorman and Maria Caspani (Reuters) -A NASA space capsule carrying the largest soil sample ever scooped up from

A piece of asteroid has arrived on Earth from the other side of the solar system, in a major success for Nasa’s Osiris-Rex mission. The spacecraft has spent years flying to Asteroid Bennu, gathering up a piece of it, and bringing it back home so that it can be studied by researchers. It brings an end to a mission that took seven years, saw it travel 4 billion miles, and cost more than a billion dollars. Scientists hope that study can help reveal how planets formed and evolved, and might shed light on how life itself began. Since Bennu is around 4.5 billion years old, the sample is almost like a look back into the solar system during its early years and Nasa has referred to it as a “time capsule”. Asteroid Bennu is also notable as Nasa’s “most dangerous asteroid”, according to a scale used to measure how much of a hazard a given object poses. It is the first time that Nasa has brought back a piece of an asteroid, and the first time since 2020. It is also the biggest ever to be gathered, at around 250 grams. Nasa sent a team on board helicopters to gather the sample canister, extracting it to ensure that it did not become contaminated by the environment. Since the sample was directly from the asteroid, it will not have any trace of material from the Earth on it, unlike those that fall to Earth. That sample will be distributed between 200 people at 38 institutions across the world, including those in the UK. The Osiris-Rex mission left Earth in September 2016, and arrived at the asteroid in October 2018. It gathered samples in October 2020, and then left the asteroid in April 2021. Since then, both the sample and the spacecraft have been returning back from the other side of the solar system to Earth. The spacecraft then dropped off the sample to return home, while Osiris-Rex will carry on to study another asteroid called Apophis, where it will arrive in 2029. Apophis is also notable for its danger: at times, it has challenged Bennu at the top of the league table of most dangerous objects. But recent research has suggested that Apophis poses less of a danger. Ashley King, UKRI future leaders fellow, Natural History Museum, said: “Osiris-Rex spent over two years studying asteroid Bennu, finding evidence for organics and minerals chemically altered by water. “These are crucial ingredients for understanding the formation of planets like Earth, so we’re delighted to be among the first researchers to study samples returned from Bennu. ‘We think the Bennu samples might be similar in composition to the recent Winchcombe meteorite fall, but largely uncontaminated by the terrestrial environment and even more pristine.” Dr Sarah Crowther, research fellow in the Department of Earth and Environmental Sciences at the University of Manchester, said: “It is a real honour to be selected to be part of the Osiris-Rex sample analysis team, working with some of the best scientists around the world. “We’re excited to receive samples in the coming weeks and months, and to begin analysing them and see what secrets asteroid Bennu holds. “A lot of our research focuses on meteorites and we can learn a lot about the history of the solar system from them. “Meteorites get hot coming through Earth’s atmosphere and can sit on Earth for many years before they are found, so the local environment and weather can alter or even erase important information about their composition and history. “Sample return missions like Osiris-Rex are vitally important because the returned samples are pristine, we know exactly w Read More Pieces of a distant asteroid are about to fall to Earth Nasa to return largest asteroid sample ever as UK helps with research Astronomers find abundance of Milky Way-like galaxies in early universe Pieces of a distant asteroid are about to fall to Earth Nasa to return largest asteroid sample ever as UK helps with research Astronomers find abundance of Milky Way-like galaxies in early universe

By Steve Gorman LOS ANGELES A NASA space capsule carrying a sample of rocky material plucked from the

The world is about to see the last Supermoon of the year. When the full Moon rises on 28 September, it will be bigger and perhaps brighter than usual, because it is relatively close to the Earth. Our nearest neighbour will be a mere 361,552km away. That compares with the average distance of 384,472km. Its relative proximity means that the Moon will appear larger and more clearly in the sky than usual, and can provide an exciting opportunity for people to get a good look at our satellite. Doing so is easier than with many other celestial phenomena: you can simply look up at the sky, and see whether you can spot the difference in the Moon’s size, though looking through telescopes or binoculars could provide a good look at its surface. It is best seen at Moonrise, when it begins to rise over the horizon. The other objects in front of it will help provide a sense of scale and can make the Moon look larger than normal. This month’s Moon is also known as the Harvest Moon, so named because it comes closest to the start of Autumn. As well as coming around harvest season, the bright reflections from the Moon can be a helpful way of working into the night. There is no formal definition of a Supermoon, and some astronomers have suggested that they are overhyped. What’s more, not all Supermoons are equal, and the lack of definition means that the word can be used for moons that are only slightly closer than normal. But they can bring significant increases in the amount of light that appears on Earth: Supermoons cast about 30 per cent more light than when the Moon is at its dimmest, according to the Natural History Museum. The museum’s planetary science researcher Sara Russell also noted that the Moon is actually moving slowly away from Earth. That means that what we call a Supermoon today was actually just the normal Moon a billion years ago. This year has been a busy one for fans of the Moon. Last month, for instance, also saw a supermoon – which also happened to collide with a Blue Moon, for the last time this decade. Read More MPs ask if Elon Musk ‘personally intervened’ on Russell Brand’s status on X Starship rocket launch window revealed by FAA India’s solar mission completes key manoeuvre, slingshots towards Sun

The event will explore the megastar's impact on culture and the music industry.

Some 17 soldiers and five other people allegedly smuggled or used synthetic marijuana via military mail.

Foreign leaders visiting the US are more enthusiastic than ever to meet with the world's richest man.

The space agency now has an official division for investigating reports of flying objects.

In October, catch this special type of solar eclipse that occurs only once every year or two.

The harvest moon is the full moon that falls closest to the fall equinox, and this year, it’s also a super moon.

Nasa’s chief says he believes that aliens are real and waiting to be found. Bill Nelson was speaking after the publication of a report by a panel assembled to look into Unidentified Anomalous Phenomena (UAPs), the official names for UFOs, or unexplained objects spotted in the sky. That report found that while some UAPs remain unexplained, more data is found to understand where they have come from. Mr Nelson said that his “personal answer” is that there are vast numbers of inhabited planets throughout the universe. “With the James Webb [telescope] looking at the exoplanets, we are now beginning to discover, and somewhere out there we will discover, another medium-sized stony planet around a medium-sized sun or star at just the right distance... that has carbon, that will have a habitable atmosphere,” he said. “If you ask me do I believe there’s life in a universe that is so vast that it’s hard for me to comprehend how big it is, my personal answer is yes. But I asked some of our scientists: What is the mathematical probability that there is life out there in the universe? And if you calculate in billions of stars in billions of galaxies that there’s replicated in what I just said, another stony planet, the answer was ‘at least a trillion’. That’s from our scientists.” Read More Watch live: Nasa announces findings of long-awaited UFO study We cannot yet explain mysterious sightings in the sky, Nasa panel says Nasa’s UFO study team reveals first ever report: Live updates