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.
Mais la chose alarmante est que des astronomes ont étudié récemment des étoiles similaires à notre Soleil, et ils ont trouvé que certaines d'entre elles, quand elles atteignent l'âge de notre Soleil, brillent 20 fois plus. Ne durent pas très longtemps.