James Marshal Couch discovered Benitoite, a rare gemstone once mistaken for sapphire, in California's San Benito Mountains.

A colossal filament eruption on the sun's northeastern limb has created a 250,000-mile-long canyon of fire, triggering a ...

A giant eruption has ripped through the sun's surface, forming a glowing trench tens of thousands of miles deep, and now ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

Earth has rarely looked as remarkable as it does in this stunning shot (above) captured by NASA astronaut Don Pettit from the ...

Thanks for visiting my channel. I make these short video postcards to highlight my experiences in wonderful places and to entice you to do the same.The Tucson Gem Show videos are so much fun to make.

Exposure to bright light at night raises heart risks by disrupting circadian rhythm. Women and young adults are especially ...

The Ax-4 crew, including Commander Peggy Whitson, Pilot Shubhanshu Shukla from the Indian Space Research Organisation (ISRO), ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented ...

The mineral jadarite has the same chemical composition as Superman’s weakness. It may be a problem for humans, too.

Summer is one of the best times to see a meteor shower. Here's why.

For 37 years in a searing California desert, runners from across the globe have embarked on a 135-mile race through one of ...