scientist are find it more and more difficult to answer the Fermi paradox :   If major planet are so common , where is everybody ? Where are the advanced civilizations ? Researchers from Harvard and the Tata Institute of Fundamental Research , Mumbai , have now suggested that we should look for intelligent biography just outside our galaxy .

agree to new research presented   by Rosanne Di Stefano and Alak Ray   at the American Astronomical Society encounter in Kissimmee , Florida   today , an interstellar   civilization   might develop within the globular clump of stars that ring the Milky Way .

orbicular clusters ( gigahertz ) are spherical accumulation of thou of stars that orbit galaxy in large orbits . Astronomers opine there are over 150 GCs border the Milky Way , and Andromeda may have as many as 500 .

genius in ball-shaped clump are usually metallic element - poor , mean they lack the elements like carbon paper , atomic number 8 , and Fe that make up most of the composition of bumpy planet and life creature . So far , we have discovered only one exoplanet in a globular cluste , universal gas constant and some scientists trust   that globular clustersdon’t have the veracious conditionsto form planet .

Di Stefano and Ray are more optimistic :   “ It ’s previous to say there are no major planet in global clustering , ” pronounce Ray in astatement .

In recent yr , it has been shown that rocky planets are justas potential to formaround metal - poor star   as metal - rich one . The lack of terrestrial spotting might be due to the fact that globular clusters are several thousand light - years from the Milky Way , making lineal observations more unmanageable .

If planets could evolve , they might be capable to survive for a long fourth dimension , which would make the likeliness of life and then an sound coinage to evolve higher . If such a metal money exist , they could eventually be up to of navigating throughout the cluster .

star within a globular clustering are also significantly closer than stars around the Sun . Proxima Centauri , the closemouthed star to the Solar System , is 4.7 light - year away , while the typical space between stars in globular clusters is about 20 time smaller than that . Exploration and communication within the clump would be more doable than our attempts .

" We call it the ' global bunch chance , ' "   says Di Stefano . “ Sending a programme between the stars would n’t take any longer than a letter from the U.S. to Europe in the 18th one C . ”

She add together : “ Interstellar traveling would take less time too . TheVoyagerprobes are 100 billion miles from Earth , or one - tenth part as far as it would take to attain the penny-pinching star if we live on in a global cluster . That means sending an interstellar investigation is something a civilization at our technological level could do in a globular bunch . ”

Although the idea is   intriguing , it ’s highly high-risk at this degree . The first finish would be to look for planet in bunch , but a electropositive detection would n’t imply living there is probable . Most hotshot in globular clustering are cherry dwarfs and they might beless suitablefor life than previously thought .