From Lowell Observatory to Kitt Peak to Mount Graham, here are the 11 best planetariums and observatories in Arizona and ...

Green Party peer Natalie Bennett, writing for HuffPost UK, calls for a new way of thinking about the environment.

As climate change accelerates, scientists are exploring bold new solutions—like using space-based technology to control Earth ...

South Boulder Walkabout: 1 p.m. Saturday, George Reynolds Branch, 3595 Table Mesa Drive, Boulder. Set off on an informal ...

Start your weekend off with a performance of The Magic of Motown. Next on Saturday, make your way down to the YMCA in Rome ...

Could our planet be trapped in an invisible cosmic tug-of-war? Some scientists believe that the strange movements of galaxies and dark matter around us may be pulling Earth in multiple directions.

Spend the day shopping sustainably at The Village’s Earth Day Marketplace, where you can indulge in carefully curated shops ...

Our Last Tree takes place in a world where youth bring us the news, alerting us to the urgency of the need to save our planet and each other. A stunning interconnection of artistry, humanity, and ...

Car-Free Earth Day on Saturday, April 26, will transform select city streets into vibrant spaces for art, music and ...

Messages will appear throughout the day in eight cities, supporting Earth Day’s 2025 positive action campaign to unite behind ...

This week, we’ve got tons of opportunities for you to get outside and get your hands dirty in celebration of Earth Day.