Watch the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA ...

A 2010 astronaut photo shows off the astonishing scale of the Great Dyke of Zimbabwe, which stretches over 340 miles (550 ...

Our planet’s magnetosphere has seen dramatic shifts across its history—even total reversals—but this recent wrinkle doesn’t pose a threat to life Earth’s magnetic field surrounds the planet, with ...

The Earth is full of wonders. Mountains, deserts, forests. Cities, monuments, artificial islands. But some things are so massive or uniquely designed that they can reportedly be seen from space. It ...

Another day, another ambitious company emerges to harness the power of the Sun from Earth's orbit. Okay, it's not quite that common an occurrence, but there are indeed a number of firms giving this a ...

Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF. Visit NAP.edu/10766 to get more information about this ...

A new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar wind and our planet's magnetic field, upending a 20-year-old theory based ...

Read a sci-fi short story every month and join a virtual community of fellow science fiction fans! In a repeat of many, many (many) days past, a SpaceX Falcon 9 rocket has yet again delivered a batch ...