There is an invisible force protecting us, keeping our atmosphere in place. Without it, life on Earth would be over very ...

A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance magnetic fields. The size of the effect can be controlled by varying the ...

Mars wasn't always frozen and barren. Billions of years ago it had flowing rivers, standing lakes, and possibly oceans. It lost all of it because of something happening deep inside the planet: its ...