Celebrate National Parks Week and Earth Day with us with this breathtaking visual tour of some of the most beautiful sights in America's national parks.

PBS Kids' beloved Arthur cartoon will spend Earth week teaching kids to go green.

If nothing else, taking a picture of yourself in nature for Earth Day will get you outside.

From environmental tips to hanging out with monkeys, there's no shortage of Earth Day entertainment.

Meet the winners of the first California Green Medal: Sustainable Winegrowing Leadership Awards.

Thought-provoking documentary weaves together stunning imagery with enlightening interviews to show how connected we are to our planet.

A new MNN comic explains why we should rename 'Wednesday' in honor of our home planet.

There are many candlelit activities to do with family or friends when you turn off the lights for an hour to raise awareness about climate change.

More than 170 world leaders signed the Paris Agreement on Earth Day 2016, but that's just the beginning.

In celebration of Earth Day on April 22, NASA has launched a clever online campaign that enables participants to "adopt" a small piece of the planet.

These small horses were thought to be the only truly wild horse species left on the planet and have a fascinating history.

Is God mad at us for recycling or behaving badly? Some of the right wing's sharpest minds think so.

After landing rovers and its spacecraft on the surface of asteroid Ryugu, JAXA is returning with a sample.

Astronomers think dark matter forms fine-grained but incredibly long streams throughout the universe.

Angkor Wat Yields Astounding Buried Towers & Spiral Structure

This opposition, which occurs every 2 years, is considered relatively favorable and precedes another event when Mars will be at its closest to Earth all year.

More than 250 earthquakes have struck the state's Southern border since New Year's Eve, and it's not the first time this has happened.

Restaurants are serving up Amatrice Pasta and donating proceeds to help earthquake victims.

Scientists say C/2019 Q4 is a comet from another galaxy.

Researchers have found a rocky planet, GJ 1252 b, that's just 66.5 light-years away and it's zipping around a red dwarf star.

NASA's Planet Hunter, TESS, discovered its first potentially habitable Earth-sized planet called TOI 700 d, located 100 light-years away.

Scientists discovered the oldest known material on the Earth's surface while studying a meteorite that landed in Australia 50 years ago.

When flowers start to dry up and die, bees struggle to find nectar and pollen. Here are some signs of nectar death and what you can do to help.

New research suggests life on Earth sprang from geothermal vents in the deep ocean.

Massive gem, the second-largest ever found, measures a whopping 1,111 carats.

With more sophisticated satellite imagery, we can view Earth from space in new, enlightening ways that expand our understanding of the planet.

The ancient weapon, likely owned by a Roman Centurion, was discovered in Germany by a 19-year-old intern.

July 2019 was the planet's warmest month since record-keeping began in 1880, according to NOAA.

Earth just had its hottest decade on record but scientists warn the warming trends will continue.

A re-edited NASA simulation shows what Earth would look like if our oceans drained away.

January 2020 was the planet's hottest January since record-keeping began, according to NOAA.

DesignCrave has assembled a stunning collection of the best Earth Day ads fit not to print.

Environmentalists protesting the construction of a huge new coal-fired power plant in the UK got naked in the offices of PR giant and power plant consultant Ede

The EPA needs better pollution monitoring equipment, President Obama trashed hundreds of bikes, and someone designed a super box.

Bloomberg Businessweek's Eric Pooley gives an insider’s view of the American campaign to cut carbon emissions and halt global warming.

The hole over Antarctica is slowly healing, but research suggests the ozone layer is thinning at lower latitudes.

Earthworms decontaminate water and create vineyard fertilizer at Fetzer Vineyards as part of regenerative sustainability program.

We may owe our very existence to microscopic organisms that forever altered the food web.

Humanity's use of coal, metals and other natural resources is reportedly making the planet more acidic.

While a few of these natural wonders formed as a result of meteors raining down, many more were crafted by the hands of our own Mother Earth.

Our planet has quite a knack for creating surreal natural landscapes. Case in point: Basalt rock columns.

The Coastal Pacific Train route closed following the Kaikoura earthquake in November 2016. The 61-mile route will reopen on Dec. 1, 2018.

On the 50th anniversary of Earth Day, the planet and a pandemic are showing us what's possible.

Fewer than 10 vaquitas may be left on Earth, down from 100 in 2014 and 30 in 2017.

A renowned biologist wants us to set aside half the planet for wildlife, part of a growing effort to avert the first man-made mass extinction.

CO2 levels are now the highest they've been since long before modern humans existed.

A new study examines how early animals might have endured the worst ice age in Earth's history.

The debris left by Comet Thatcher isn't as spectacular as other meteor showers, but the moon will make viewing much easier this year.

In honor of Earth Day, MNN takes an animated look back at several decades of U.S. environmentalism in this video.

As Japan recovers from a massive earthquake, here's a look at why such tremors happen and where the next one might strike.