Today (Feb. 17), the moon and sun will create a "ring of fire" during an annular solar eclipse. Here's what to expect.
In 2023, NASA's OSIRIS-REx mission delivered samples of the 4.6-billion-year-old asteroid Bennu to Earth. Upon examining them, scientists discovered that the asteroid - which existed when the Solar System was in the earliest phase of its formation - contained amino acids, the fundamental building blocks of life as we know it. These acids are responsible for the production of proteins and peptides found in DNA. Their retrieval from space confirmed what scientists had theorized decades ago: that the ingredients for life came from space.

