After getting a submarine upgrade in Volcanic Vents, you can visit Challenger's Deep, which is opposite to the previous location, and instead of lava, it is completely covered in ice. Here's how ...

Just eight people have reached Challenger Deep, the deepest point of the ocean. More than 550 people have visited space. But only one person has done both: Kathy Sullivan. On Sunday, the NASA ...

Sullivan dove to the bottom of the Challenger Deep and safely returned in her submersible vessel on Monday, according to EYOS Expeditions, the company that operated her expedition. She is now the ...