(Mass Appeal) – April 22 is Earth Day, and we thought it would be fun to experiment with erosion using three basic materials: plastic bottles, soil, and water. Dr. Yadilette Rivera-Colón, Board Chair ...

A 250-day experiment using a ring laser achieved unprecedented accuracy in measuring Earth's axial wobble (nutation and precession), surpassing previous gyroscope and ring laser technologies by a ...

Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

More than fifty years after its founding, millions of people in the U.S. still gather in the spring with the goal of creating a cleaner environment. Earth Day is April 22 and is celebrated across the ...

Earth Day will be celebrated around the world on Tuesday, April 22, marking more than half a century since its inception as a grassroots environmental movement in the United States. The date has grown ...

At sunrise on a cool April morning, volunteers kneel in the dirt — hands muddy, spirits high — planting the seeds of a greener future, one sapling at a time. But for many, Earth Day is about more than ...