sooner this yr we account the story of three stars that back in July 1952disappeared within an hourfrom the Nox sky everlastingly , leave behind behind a mystery with several potential explanation . But these are not the only star that have gone escape , not by a tenacious shot . In 2019 , the Vanishing and Appearing Sources during a Century of Observations ( VASCO ) task assay to catalog how many mavin have disappear from view in the last 70 year and found around 100 missing without a concrete explanation .
The VASCO projectcomparedimages accept by the US Naval Observatory from 1949 onward with images from thePan - STARRS sky surveybetween 2010 and 2014 . The package used by the squad come back with around 150,000 likely sources of light that had disappeared in the intervening eld .
They then sweep - referenced with other datasets to narrow it down further . This process left them with 24,000 candidate , which they then manually went through to leave off camera malfunction and other error . At the end of it , they had around 100 promising candidates for real source of light that disappeared from our survey .
superstar may dim likeBetelgeuseor explode as a supernova allow an afterglow for hours or days , but in the main do not merely vanish from view . One possible account is that they die to go supernova , instead collapsing into a black trap . This is thought to be incredibly uncommon at less than 1 in 90 million , however , and would in all probability not explain why so many point of light have choke miss . A laterstudyby VASCO , looking at further fell campaigner , placed the fail supernova detection pace at less than1 in 600 million .
Other possibilities could begravitational lensing , where outer space - time is buckle by vastly heavy object , sometimes magnifying objects far into the distance , or other abbreviated burst of clear such asgamma - ray burstsgetting captured in older study . nigher - moving object , such as asteroids , could also answer for for these disappearances .
While studying these objects is of involvement to astrophysics who may have to explain mechanisms for star disappearance , one of the motivating factors behind the search was a lot more out there : the search for aDyson Sphere , a hypothetical means innovative civilizations could rein the exponent of a star by surrounding it with solar panels . Searching these transients could ( and that ’s a fairly big could ) lead us to an advanced civilization .
" If a realm of the sky has a tendency to produce an out of the blue expectant fraction of candidates relative to the background , this region or ' hot spot ' may merit some extra attention . " a dissimilar squad write in their 2019 paper inThe Astronomical Journal .
However , the follow - up bailiwick did not identify secure candidates for Dyson Spheres either , leave alone us with a whole lot of escape wizard and not much by way of account .
An early rendering of this clause was published in November 2023 .