If pollen allergies are getting to you, you are not alone. Every year, plants release billions of pollen grains into the air, ...

The sun's corona—the outermost layer of its atmosphere, visible only during a total solar eclipse—has long intrigued ...

Volcanic ash from eruptions can reshape cirrus clouds, forming giant ice crystals and altering how Earth traps heat in the ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow ...