Karl Tate

Here's how BP's oil-spill containment dome will work in its first test at such depths.

If oil continues to ooze from the oil leak in the Gulf, things could look like Exxon Valdez pretty quickly.

Here's a graphic showing how the Deepwater Horizon collapse led to an oil spill and what's being done to stem the spreading oil.

Iceland's Eyjafjallajokull volcano created an ash cloud that disrupted flights, created beautiful sunsets and lightning.