On this first day of autumn, we offer a quiet moment of reflection penned 80 years ago.
When Katrina hit, the nation saw tens of thousands left behind in New Orleans. Ten years later, it looks like the same people have been left behind again.
The Apollo-Soyuz Test Project (ASTP), conducted 40 years ago in July 1975, was the first joint U.S.-Soviet space flight.
On this day in 1945, the Manhattan Project came to an explosive end as the first atom bomb was successfully tested in New Mexico.
It is recognized by an increasing number of countries as an opportunity to celebrate our world ocean and our personal connection to the sea.
The first Arbor Day in the world was celebrated in the small Spanish village of Villanueva de la Sierra in 1805.
Earth Day encourages all citizens to help protect our environment and contribute to a healthy, sustainable world.
We need to remember them; we need to be inspired by their courage to create the world for which they fought and died.
On this day in 2010, a BP oil rig exploded in the Gulf of Mexico, resulting in the largest offshore oil spill in U.S. history.
This is the science of climate change. It is no longer up for debate.