On a large asteroid named Vesta, mysteriously curved gullies and fan-shaped deposits may have formed from short-lived flows ...

But on some worlds, including the giant asteroid Vesta that NASA's Dawn mission explored, the surfaces also contain deep channels, or gullies, whose origins are not fully understood. A prime ...

But on some worlds, including the giant asteroid Vesta that NASA’s Dawn mission explored, the surfaces also contain deep channels, or gullies, whose origins are not fully understood. A prime ...

Most of them have a diameter of between 20 to 100 kilometres, a few up to 500 kilometres, but none are larger than Ceres: with its 1000- kilometre diameter, it makes up more than a third of the total ...