This star offers the earliest peek at the birth of a planetary system like ours
By McKenzie Prillaman, Science.
Excerpt: About 1,400 light-years from Earth sits a young sunlike star surrounded by cooling gas and teensy silicate minerals. These mineral solids — some of the building blocks of rocky planets — are among the first to condense from the gas, suggesting that they’re kick-starting the creation of planets in a system much like the one earthlings call home, researchers report in the July 17 Nature. “It really is the first time we’ve seen this stage of planet formation in the process,” says planetary scientist Laura Schaefer of Stanford University, who was not involved in the new study. Observing the timeline of these early hot minerals will help researchers better understand how events unfolded billions of years ago in the solar system....