Drupe, a fleshy fruit that develops from a single ovary and contains one or more seeds enclosed within a hard pit, or stone, in the fruit's center. s.The almond is an example of a drupe.
How do scientists find details about the early days of our solar system? One way is to investigate comets. Find out how the Deep Impact spacecraft fired an impactor into Comet Tempel 1 to get some answers.
While routinely scanning the stars, NASA scientists came across something they didn't expect to see: a vast area of space empty of stars, planets and matter.