We are familiar with History we can relate to. What about what we can't possibly fathom? Stardust from seven billion years ago found on Earth is ‘oldest ever and older than the sun' The researchers learned that some of the presolar grains in their sample were the oldest ever discovered on Earth. Based on how many cosmic rays they had soaked up, most of the grains had to be 4.6 to 4.9 billion years old, and some grains were older than 5.5 billion years. But the age of the presolar grains was not the end of the discovery. As presolar grains are formed when a star dies, they reveal the star's history. I don't know about y'all, but, billions of years is hard for me to wrap my head around. This sheds a different light on everything, no pun intended.