But the alarming thing is that astronomers recently have been studying stars that are similar to our Sun, and they've found that a number of them, when they're about the age of our Sun, brighten by a factor of as much as 20. Doesn't last for very long.
Dar alarmant este că astronomii au studiat în ultima vreme stele care sunt similare cu Soarele, şi au aflat că multe din ele, când ajung la vârsta Soarelui nostru strălucesc de 20 ori mai mult. Nu durează foarte mult.