It has not been studied a lot despite being one of the biggest asteroids.

Although the biggest asteroid apart from the "big four", Interamnia is not studied a lot.

But in the middle of it, protected by several thousand other pieces of rock, is an asteroid big enough to be a moon.

A whale of a big asteroid must have hit there when Gummidgy was passing through the system.

But that's treating it like nothing more than a big asteroid.

We've longed to get a look at that big asteroid, and now we have a foothold there.

But most agree that over time, a big asteroid will probably materialize to menace Earth.

Eugenia is a big asteroid, with a diameter of 214 km.

It has an unusually long rotation period among the big asteroids.