Watch the video to see a ball of solidified molten rock, also known as a "lava bomb", as it speeds down the side of the Cumbre Vieja volcano on the Spanish island of La Palma. The volcano has been ...

Watch the video to see a ball of solidified molten rock, also known as a "lava bomb", as it speeds down the side of the Cumbre Vieja volcano on the Spanish island of La Palma. The volcano has been ...