For millennia humans have been inspired by the stars but this may soon be a thing of the past due to a significant increase in the numbers of satellites, potentially limiting our view of the night sky ...

For decades, scientists have sought to understand how the Sun transfers energy, mass, and momentum to the near-Earth space. Now, the University of Iowa is leading NASA’s Tandem Reconnection and Cusp ...

Since Earth has survived for over 4.5 billion years, why should we consider any need to protect Earth now—assuming we can? She has survived cosmic forces, meteor impacts, volcanic eruptions, ice ages, ...