An article describing the findings was published online March 24 in the journal Proceedings of the National Academy of Sciences
The finding may give astronomers one more thing to consider when figuring out which exoplanets are likeliest to harbor extraterrestrial
"We can put 80 times more water on a super-Earth and still have its surface look like Earth," Cowan said in a statement. 9
The habitable zone of a nearby star is filled to the brim with planets that could support alien life, scientists announced today (June 25). An international team of scientists found a record-breaking three potentially habitable planets around the star Gliese 667C, a star 22 light-years from Earth that is orbited by at least six planets, and possibly as many as seven, researchers said.
"We knew that the star had three planets from previous studies, so we wanted to see whether there were any more," co-leader
It seems that the frequency of planets able to support life is roughly one percent. In other words, a billion or more such worlds exist in our galaxy alone. That's a lot of acreage, and it takes industrial-strength credulity to believe it's all bleakly barren.
Even though many of the planets orbit their stars very closely and have high temperatures, which in turn causes their hydrogen