: You can use the official 7-Zip software to pack or unpack these files.
: You can use apps like WinZip or Unzip One to handle .7z files on iPhone or iPad. Quick Star Facts stars.7z
: Most stars, including our Sun, spend the majority of their lives in this stable phase, fusing hydrogen into helium. : You can use the official 7-Zip software
: A star's fate is determined by its initial mass: including our Sun