The visible universe is just the tip of the iceberg. Join us as we delve into the fascinating realms of dark energy and dark matter, the true rulers of the cosmos.

Measuring roughly 1,350 square miles (3,500 square kilometers) across, A23a is the world's largest and oldest iceberg ...

BAS released a video showing views of the iceberg from the ocean level and from satellites in space. A23a can be seen pirouetting and then finally drifting off. The iceberg first broke off from ...