Trees curb climate change directly by removing carbon dioxide from the atmosphere. Through the process of photosynthesis, forests offset 10 to 20 percent of the country’s greenhouse gas emissions each year. Additionally, trees help protect against climate impacts such as flooding, which is getting w

Virgin Galactic’s VSS Unity, the reusable rocket-powered space plane carrying the company’s first crew of tourists to space, has successfully launched and landed.

Near the start of the 20th century, a mysterious and deadly virus terrified Americans, particularly infecting young kids: Polio. Correspondent Rita Braver looks at the scientific arsenal brought to combat the epidemic and develop a vaccine, and talks with documentary filmmaker Carl Kurlander ("The S

A European space telescope blasted off Saturday on a quest to explore the mysterious and invisible realm known as the dark universe.

SpaceX launched the European Space Agency’s Euclid observatory toward its ultimate destination 1.5 million kilometers away, the Webb Space Telescope’s neighborhood.

100 million pieces of “space junk” currently orbit our planet at 17,500 miles per hour. Adrift investigates the fate of these interstellar objects, which threaten to collide with and destroy satellites and spacecraft.

Director and producer Cath Le Couteur recruited Sally Potter to narrate the fil

The prospect of space travel will feel much different after the Inspiration4 mission—the first orbital mission with an all-civilian crew—launches this fall. Once that happens, the history of human spaceflight will instantly be divided into two eras. There will have been the six decades after the fir

The moon will pass through Earth's shadow tonight in the only total lunar eclipse of 2019 and you won't want to miss it! If you do, you'll have to wait two years for the next one. And if you're in North America, you'd have to wait even longer, until 2022!

The partial stage of the lunar eclipse b...

Italians are making the most of their isolation by singing together and playing music for their neighbours from their balconies during the lockdown. Italy's death toll has crossed 1,400, the highest in the world outside China.

UPDATE: Check out my new video that answers all of your questions. It explains what made it all possible. the way it works is pretty simple: plug in my transmitter into the IPhone 4 and play back any video clip. you can play it through the IPod feature or through the camera roll. the transmitter ins...

Mars is a cold and barren desert today, but scientists think that in the ancient past it was warm and wet. The loss of the early Martian atmosphere may have led to this dramatic change, and one of the prime suspects is the solar wind. Unlike Earth, Mars lacks a global magnetic field to deflect the s