According to the National Geographic, rainforests could vanish from the planet completely within the next century if current deforestation rates continue." Here's a really cool infographic that illustrates the many, many reasons why we can't let that happen:
You've Heard About This Problem With Our Trees, But Do You Really Know How Big It Is?
A good infographic on Deforestation. My students have been doing DNA barcoding to identify species of trees, and determine the native species that best sequester carbon dioxide. I thought this infographic did a good job of simplifying why deforestation is an issue worldwide.
Things You Don't Know About Outer Space. (A Black holes gravitational force is so strong, once an object reaches the event horizon, there's no coming back/getting out, and thus it absorbs that object and its light, such as a nearby star... I could be wrong though).