After witnessing a massive oil spill in Santa Barbara in 1969, Wisconsin Senator Gaylord Nelson began hatching the idea for what would become known as the world’s first ‘Earth Day.’ The first Earth ...

The first day of meteorological spring is March 1, while the astronomical first day of spring varies based on the vernal equinox. Astronomical seasons depend on the Earth's position relative to the ...

Spring has sprung, depending on what you consider the first day of the season. The first day of meteorological spring was on March 1 and the first day of astronomical spring will fall almost two weeks ...

Spring has sprung and it's time to get outdoors and celebrate nature. And what better time to keep our planet happy and healthy than on Earth Day? See when we celebrate the holiday this year, what ...

Oh, how we love Mother Earth, don't we? Earth is our home and has given us so much — green grass, sunny skies, breathtaking sunsets and beautiful snow — so why not celebrate it by taking one day to ...

Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

As Earth Day approaches its 55th anniversary, some experts ask whether the celebration has kept pace with the urgency of the climate crisis. On April 22, 1970, the United States witnessed an ...

It's been more than 50 years since the first Earth Day in the United States. On April 22, 1970, people gathered at events across the country to raise awareness about the environmental issues impacting ...

Meteorological fall begins on September 1, while astronomical fall starts on September 22 at 2:19 PM ET. Meteorological seasons are based on temperature, while astronomical seasons are based on the ...

Meteorological fall begins on September 1, while astronomical fall starts on September 22 at 2:19 PM ET. Meteorological seasons are based on temperature, while astronomical seasons are based on the ...