Reese Corey, 2, loves reading until she is distracted by a dinosaur — something that has a higher-than-average probability of happening at the Field Museum. But story time — no matter how long ...

Researchers believe this 4.6-billion-year-old piece of rock could reveal compounds present at the beginning of the solar system and the building blocks of life.

The fragment is like a time capsule, taking scientists back 4.6 billion years. "We believe Bennu contains part of the ingredients for life, and part of the ingredients of the formation of Earth ...

"What struck me is how dark the sample is. I had never seen such a dark sample," Heck said. The fragment is like a time capsule, taking scientists back 4.6 billion years.