background preloader


Facebook Twitter

Spectacular collision of suns will create new star in night sky in 2022. Monster stars discovered by British astronomers could change our understanding of the cosmos. Until now, astronomers had theorised that huge stars were formed when two smaller stars merged, but the sheer number of massive stars in the cluster suggests another process must be at work. Saida Caballero-Nieves, from Sheffield University's Department of Physics and Astronomy, said: "There have been suggestions that these monsters result from the merger of less extreme stars in close binary systems. "From what we know about the frequency of massive mergers, this scenario can't account for all the really massive stars that we see in R136, so it would appear that such stars can originate from the star formation process.

" The star cluster is in the Tarantula Nebula within the Large Magellanic Cloud - a satellite galaxy of our own Milky Way. The Hubble Space Telescope The team said the young cluster hosts many extremely massive, hot and luminous stars whose energy is mostly radiated in the ultra violet, which is why the scientists used Hubble to probe the ultraviolet emission of the cluster. Hubble Space Telescope spots forming star like a Star Wars lightsabre. It might look like something from a galaxy far, far away, but in fact this celestial lighsaber display ins happening in our own galaxy. Perfectly timed for the release of 'Star Wars Episode VII: The Force Awakens', the Hubble Space Telescope has revealed the 'cosmic double-bladed lightsaber'. In the centre of the image, partially obscured by a dark cloak of dust, an adolescent star shoots twin jets out into space, demonstrating the fearsome forces of the universe. Scroll down for video Hubble has revealed the 'cosmic double-bladed lightsaber' within a turbulent patch of space known as the Orion B molecular cloud complex, which is just over 1350 light-years away.

The image looks similar to Darth Maul's double-bladed lightsabre in Star Wars Episode One, seen here immortalised in Lego. It resides within a turbulent patch of space known as the Orion B molecular cloud complex, which is located just over 1350 light-years away in the constellation of Orion (The Hunter). Loaded: 0% Progress: 0% WISE Views Aging Star Erupting With Dust. It's a dust bunny of cosmic proportions. Astronomers used images from NASA's Wide-field Infrared Survey Explorer, or WISE, to locate an aging star shedding loads of dust (orange dot at upper left). Only one other star, called Sakurai's object, has been caught erupting with such large amounts of dust.

The process is a natural part of aging for stars like our sun. As they puff up into red giants, they shed dust that is later recycled back into other stars, planets, and in the case of our solar system, living creatures. Image credit: NASA/JPL-Caltech Using images from NASA’s Wide-field Infrared Survey Explorer, scientists were able to locate an aging star releasing large amounts of dust as it begins the “red giant” phase of its life. Scientists know of only one other star currently in this stage, Sakurai’s Object, and state that this is a very rare observation. Results indicate the star recently exploded with copious amounts of fresh dust, equivalent in mass to our planet Earth.

The birth of a star: Astronomers find 'holy grail' that could explain how our solar system formed. The infant star is just 300,000 years old, and is more than 450 light years from Earth in the constellation TaurusAstronomers believe it could reveal how our own solar system formed By Mark Prigg Published: 19:06 GMT, 5 December 2012 | Updated: 08:44 GMT, 6 December 2012 A ‘baby’ star has been captured just before ‘birth’ by astronomers for the first time - a breakthrough being described as the potential 'holy grail' of stellar evolution. The discovery provides the missing link in understanding how giant gas clouds collapse to form fully fledged stars.

The star’s swirling disk of dust and gas is the youngest still-forming planetary system yet found - and could provide vital clues as to how our own solar system formed. How a star is born: A young star pulls material from surroundings into rotating disk (right); generating a huge flow of jets of material (left). The disk surrounding the young star contains at least enough ‘stuff’ to make seven Jupiters - the largest planet in our solar system. A glimpse of the universe as it was soon after the Big Bang: astronomers identify a star dated to at least 13.2 billion years old.

Star known as HD 140283 has been observed for more than a centuryIt formed within the first 600 million years of the Big BangEarth lies just 186 light years away from the oldest known star By Lewis Smith Published: 10:26 GMT, 14 January 2013 | Updated: 19:53 GMT, 14 January 2013 More than a century after it was first observed by astronomers a star has been identified as the oldest yet seen in the universe.

The star is just 186 light years away from Earth and is at least 13.2 billion years old, and quite possibly many millions of years older than that. The Big Bang is calculated by scientists to have taken place about 13.77 billion years ago and the star, known only as HD 140283, was among the earliest stars to form. An artist's impression of how the oldest known star in the universe might look 'We believe this star is the oldest known in the Universe with a well determined age,' Howard Bond, an astronomer at Pennsylvania State University, told the American Astronomical Society.

The birth of a baby star: NASA acts as midwife to watch new creation burst into life. By Eddie Wrenn Published: 14:06 GMT, 13 July 2012 | Updated: 14:18 GMT, 13 July 2012 Like an intergalactic midwife, NASA has been carefully monitoring a stellar infant still partly swaddled in its birth cloud. Using combined data from a trio of orbiting X-ray telescopes, astronomers have obtained a rare glimpse of the powerful phenomena that accompany a still-forming star. The space agency is monitoring star 'V1647 Orionis', and have watched as intense magnetic fields drive torrents of gas into the stellar surface, where they heat large areas to millions of degrees.

This causes X-ray emissions, emitted by these hot spots betray the newborn star's rapid rotation. During outbursts, the infant star may brighten by 100 times at X-ray energies. Scroll down for video: During its outbursts, the infant star V1647 Orionis illuminated McNeil's Nebula. Astronomers first took notice of the young star, known as , in January 2004, near the peak of an outburst.

What actually causes the star's outbursts? Scientists solve 'the biggest mystery in the universe' after finding 'impossible' stars which are 300 times the size of our sun. Current theories suggest that stars cannot grow to this size naturallyBut observations show at least four stars break this rule By Eddie Wrenn Published: 15:24 GMT, 7 August 2012 | Updated: 10:59 GMT, 8 August 2012 Scientists have come up with a theory which could answer one of the biggest mysteries in the universe.

In 2010, NASA scientists discovered four stars which absolutely dwarf anything that comes before them - they are 300 times as massive as the Sun, and twice as large as it was predicted stars could ever be. Now researchers at the Bonn University in Germany, say the stars, part of the giant star cluster R136 in the Large Magellanic Cloud, which is about 160,000 light years from Earth, could be the size they are thanks to a few mergers and acquisitions. Scroll down for video The biggest stars in the galaxy: 160,000 light years away lay four stars which are much bigger than science anticipated This value represented a universal limit and appeared to apply wherever stars formed.

Stunning photo reveals newborn stars emerging from a giant space cloud some 600 light years from Earth. By David Mccormack Published: 01:40 GMT, 17 January 2013 | Updated: 13:14 GMT, 17 January 2013 This stunning photograph shows a dark cloud in deep space where new stars are forming alongside a cluster of brilliant stars that have already emerged. The cloud, known as Lupus 3, lies about 600 light years from Earth in the constellation of Scorpius (The Scorpion).

The picture, recently taken from a telescope at the European Southern Observatory in Chile, is regarded as the best image ever taken of Lupus 3. Scroll down for video This wide-field view shows Lupus 3 and a cluster of brilliant stars that lie about 600 light years from Earth in the constellation of Scorpius The observatory has released two images, the second a close-up (below) and a video which reveal both the Lupus 3 space cloud and a dazzling bright star cluster beside it. ‘At first glance, these two features could not be more different, but they are in fact closely linked,’ explains an ESO official. Astronomers find 'most prolific star factory in the Universe', producing 3,000 Suns per YEAR. The galaxy, dubbed HFLS3 is 12.8 billion light-years from EarthFound to be 2,000 times more prolific than our own Milky Way By Mark Prigg Published: 15:18 GMT, 18 April 2013 | Updated: 16:09 GMT, 18 April 2013 Astronomers have found the most prolific star factory in the Universe.

Named HFLS3, it is 12.8 billion light-years from Earth - and is producing the equivalent of nearly 3,000 Suns per year. This makes it more than 2,000 times more prolific than our own Milky Way. Needle in a Haystack: Named HFLS3, it is 12.8 billion light-years from Earth - and is producing the equivalent of nearly 3,000 Suns per year.

The team made the discovery in a galaxy so distant that they see it as it was when the universe was only six percent of its current age. Stars are born within dust clouds scattered through galaxies. Turbulence pushes gas and dust together, and the resulting knot begins to collapse under its own gravitational attraction. The National Science Foundation's Karl G. All the Gold in the Universe Could Come From the Collisions of Neutron Stars.