Could people turn Mars into another Earth? Here’s what it would take to transform its barren landscape into a life-friendly ...

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

Is it possible that one day we could make Mars like Earth? –Tyla, age 16, Mississippi. When I was in middle school, my biology teacher showed our class the sci-fi movie Star Trek III: The Search for ...

While other non-Earth objects, or NEOs, have entered Earth's orbit before, some don't complete full revolutions of Earth. Some, however, do and become so-called mini-moons.