NASA's Lucy spacecraft is six days and less than 50 million miles (80 million km) away from its second close encounter with an asteroid; this time, the small main belt asteroid Donaldjohanson.

Lucy spacecraft, which passed 200 miles above the Earth's surface during the one-year anniversary of its mission, was visible on Sunday morning Brenton Blanchet is a writer-reporter at PEOPLE.

The next stop for NASA's asteroid-hopping spacecraft Lucy is a space rock named Donaldjohanson, an object researchers recently learned is about 150 million years old. Lucy will fly past the three ...