A live look at humanity's attempts to understand and experience the cosmos.
- •Here’s how life could thrive on a planet orbiting a black hole—and other alternative suns
- •An experiment hinted at Martian life in the '70s. So why did we stop looking?
- •Are we alone in the universe? Probably not.
- •This distant world is a lot like Earth, but you wouldn't want to live there
- •We're one step closer to tracking down another Earth
- •That giant cigar that zipped through our solar system definitely wasn’t a spaceship
Could we ever harness our power from a shell of solar collectors positioned around a star? It's called a Dyson Sphere, and was theorized by physicist Freeman Dyson in 1960.
In 1957, a Soviet street dog named Laika launched into space aboard Sputnik-2 and became the first animal to orbit the Earth. This is her story.