Feral cats cover a staggering 99.8 percent of Australian landmass, according to a new report in the journal Biological Conservation.

West Coast oysters can’t catch a break. A study suggests that while climate change could boost their numbers, it might unleash more invasive "oyster drills."

The marbled crayfish didn't exist until the 1990s thanks to a mutation. Now, it's basically a self-replicating invasive species.

Chuck Leavell recounts his most recent presidential run-in at the UN Climate Summit.

One hundred people are still in the running to become humanity's first Mars explorers.

Paying taxes is an inescapable reality — even in space.

Mice zapped with cosmic rays can incur brain damage, suggesting that astronauts' brains could suffer over time on deep-space missions to Mars and beyond.

An innovative concept for tiny probes attached to gliders could one day allow small robots to explore intricate locales on Mars.

Extraterrestrial business questions about asteroids and spaceflight finally answered.

The Mars InSight lander, developed to peer deep into the red planet's interior, is slated to launch on the morning of May 5.

It would be the first heavier-than-air craft flown on another planet.

Dust storms like this might provide hints about what happened to the water on Mars.

An in-depth study into the resources and tech needed to turn Mars into Earth finds we're not quite there yet.

The rover was originally meant to only live for 90 days.

Life-affirming data from 1976 was dismissed as a 'false positive,' but former NASA scientist Gilbert V. Levin is speaking up.

Plus: National Geographic turns 125 and more Ecollywood odds and ends.

Sara Rue becomes a mom on and off the set of 'Malibu Country'.

Luke Perry and Ricky Shroder star in Hallmark's 'Goodnight For Justice: Queen of Hearts.'

'Switched at Birth' stars raise poultry, reveal upcoming storylines.

Jesse Metcalfe talks about his green-minded character on 'Dallas' and the loss of Larry Hagman.

CBS' ELEMENTARY — TV series reduces waste; Lucy Liu saves energy.

A solar computer bag, which comes with charging adapters for various devices, was popular item with celebs like "Modern Family" star Rico Rodriguez.

Viola Davis and Emmy Rossum do their part.

Naomie Harris' 100% biodegradable Oscars gown, which took 120 hours to make, will be on display at the Hampton Court Palace in London.

Natasha Henstridge, Gilles Marini and other celebs attend the annual event.

He plays a KGB spy in 'The Americans'.

Green 'Family Weekend'; nature TV premieres.

'American Idol' meets Coke REV; Leonardo DiCaprio likes UNREAL candy; and TV tune-ins.

Chef contestants cook with local ingredients from their hometowns.

Plus: Heidi Klum’s Earth Day and Howard Stern’s animal instincts.

Actress was also recently named PETA's Person of the Year.

Event showcased the latest green products to eat, wear, and buy.

New Discovery series 'Lone Target' turns Joel Lambert into human prey.

Gold Rush? More like cold rush! The cast and crew of the miniseries reveal how they battled extreme weather to bring this epic tale to the screen.

Former Hell's Angel Tim Medvetz plays the role of motivational 'bus driver' to a group of unlikely adventurers.

Chuck Leavell took a break from his music to discuss global parks and how we can make them better.

National Wildlife Federation honors America's best environmental schools.

They may not be as well known as Rachel Carson or Jane Goodall, but they've contributed in profound ways to the environmental movement.

Comic artist Rob Lang gives animals a way to speak their piece with "Underdone Comics.'

Conservation photographer Krista Schlyer is documenting the people, wildlife and landscapes of America's 'forgotten' river.

New Hampshire distillery Tamworth turns the healthy spice into a tribute to Alexander Von Humboldt, the "forgotten father of environmentalism."

Being eco-conscious doesn’t have to stress you out or stretch your budget. Learn how to be kind to the earth while also enjoying life.

The Climate Counts 2010-2011 Company Scorecard is now available.

In a goofy, profane, self-mocking rap video, a handful of young Australian climate scientists preach an inconvenient truth: There are two few scientists at the

Because of the contentious nature of the Senate, the Supreme Court's ruling that there is not a "parallel track" for climate policy paves the way for a Washingt

At a campaign stop, retired environmentalist Anthony Samsel asked Mitt Romney a question about coal-fired power plants. Romney's response surprised him.

Spending cuts are the talk of Washington these days. Some are looking to make big political gains with cuts that won't create measurable savings.

As GOP presidential hopefuls sound the alarm on the global warming hoax, we've uncovered the smoking gun: irrefutable proof, backed by flawless logic, that clim

A new IPCC report is about to come out that proves what we all know already -- there is most definitely a connection between climate change and extreme weather.

What would environmental policy look like under Paul Ryan? The U.S. vice presidential candidate is a self-proclaimed 'avid outdoorsman,' but his policies often