Tag Archives: South Sandwich Islands

In March, Kat Bolstad returned from an Antarctic expedition where she had used a new camera system specially built to search for the elusive colossal squid. No one had captured footage of one of these animals swimming in the deep sea. She didn’t spot one on this voyage either. On the day she left the ship, though, Dr. Bolstad, a …

The inner core at the center of the Earth, a ball of iron and nickel about 1,500 miles wide, may not be perfectly solid. A new study finds evidence that the inner core’s outer boundary has noticeably changed shape over the past few decades. “The most likely thing is the outer core is kind of tugging on the inner core …