
Astronomers have observed two planets forming around a distant infant star, thus discovering a planetary system that offers us a look at the appearance of the solar system over 4 billion years ago.
The infant star in question is named WISPIT 2, and it's located around 437 light-years away with an estimated age of around 5.4 million years old. If that makes this star sound anything but an infant, consider that our middle-aged star, the sun, is 4.6 billion years old.