We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

The moon slipped between the Earth and the sun on Saturday, casting a shadow on our planet in parts of the United States, ...

Kartchner Caverns State Park, Alabaster Caverns State Park, and Onondaga Cave State Park are some of the caves travelers can ...

In just a few days, a total lunar eclipse will be viewable from the U.S. See where and when you can catch a glimpse.

“They are a to-do list for people and planet, and a blueprint ... the challenge of climate change, United Nations Secretary-General Ban Ki-moon told Member States today as he opened a High ...

Travel Manitoba says U.S. visitors to the province seem undeterred by the tension over tariffs and continue to cross the ...