Vesta is passing an 8th-magnitude field star, offering a great opportunity to see the space rock’s motion on the sky over just a few nights.

"Our technique isn't restricted just to Io, Ceres, Vesta, or the moon," said Park. "There are many opportunities in the future to apply our technique for studying the interiors of intriguing ...

Asteroid 4 Vesta stands near a background star in the evening sky, creating a temporary artificial double star to enjoy.

Although the Moon and the asteroid Vesta are very different, two NASA studies use the same technique to reveal new details about the interiors of both.