Breaking News US/Australia ll  Two stars that have begun to randomly dim prompt questions of aliens

Breaking News US/Australia ll Two stars that have begun to randomly dim prompt questions of aliens

Light from a distant star system has begun to dim, prompting some scientists to examine whether it might be a sign of alien life The star system in question, HD 139139, lies some 350 million light years from Earth, in the Libra constellation Scientists believe the system is home to a pair of stars that are bound to one another, given the joint nickname ‘Random Transiter,’ which have been observed frequently dimming over the last several months The Kepler Space Telescope recorded 28 instances of random dimming over an 87-day period suggesting that something potentially interesting is happening  There can be many different causes for stars dimming, according to a SFGate report, including debris floating in front of the star, or one of the 28 planets that orbit Random Transiter passing by Share this article Share 244 shares Another possibility is that aliens have constructed some sort of technology that regularly interferes with the light emitted by the stars That option is perhaps the least likely, but it can’t be definitely ruled out TABBY’S STAR Tabby’s Star, known officially as KIC 8462852, has baffled experts since it was discovered in 2015 Observations revealed its light dimmed regularly, as do distant stars when their planets pass in front of them  But while the stars of most exoplanet systems are seen to dim by a few per cent, KIC 8462852 dimmed by more than 20 per cent over periods of months Some have claimed this dimming could be evidence of a Dyson Sphere – a hypothetical structure which could be used by an advanced alien race to harness the energy of a star Scientists remain skeptical, offering that the dimming could be explained by a dust ring around the star or a hail of comets passing in between the star and Earth In a forthcoming paper, researchers at UC Berkeley point to all the unusual activity coming from HD 139139 as a reason to make it a focus of study ‘The mystery behind the origin of these events makes this system an interesting target for technosignature searches,’ the group says in the paper, to be published in Research Notes of the American In the past, a number of other instances of star dimming have been linked to the potential existence of alien life In 2017, researchers investigated where the rapid dimming of Tabby’s star might have been caused by an ‘alien megastructure ‘In the end, they determined it was likely caused by microscopic fine dust that scattered the starlight Last year, a team of researchers from Harvard and Yale went so far as to suggest the idea of trying to dim our own home star, the sun, as a way of fighting climate change Using a technique called stratospheric aerosol injection (SAI), researchers would deliver sulfates into the atmosphere with balloons and high altitude planes The sulfates would theoretically disperse the light from the sun  The idea was strictly hypothetical, with an estimated starting cost of $3 5 billion. As with a first encounter with alien life, scientists were unsure whether the longterm outcome would be better or worse WHAT IS A DYSON SPHERE? A suggested method for harnessing the power of an entire star is known as a Dyson sphere First proposed by theoretical physicist Freeman Dyson in 1960, this would be a swarm of satellites that surrounds a star They could be an enclosed shell, or spacecraft spread out to gather its energy – known as a Dyson swarm If such structures do exist, they would emit huge amounts of noticeable infrared radiation back on Earth But as of yet, such a structure has not been detected.Source: All About Space magazine 

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