UFO whistleblower delivers bombshell testimony in congressional hearing

Typhoon Doksuri batters Philippines and displaces thousands

Florida ocean temperature topped 100 degrees, setting potential record

NASA teams up with Brazilian government to protect the Amazon

Arizona heat wave causing serious burns from falling on the ground

Greta Thunberg denies crime after getting fined for disobeying Swedish police

Pope Francis calls for "urgent" climate action in bold speech

Record-breaking heat wave in southern US set to mark hottest month ever

Pollution from Canada wildfires similar to breathing secondhand smoke

"Life or death": Arizona heat wave poses lethal threat to homeless

Donald Trump border wall damage causes huge settlement win for wildlife

Pika Fire in Yosemite National Park balloons – with no containment

US West and South continue to bake under extended heat wave: "It's hell"

US climate envoy John Kerry meets with Chinese counterpart in Beijing

Heat dome continues to roast large parts of the US as millions struggle

Earthquake off Alaskan coast triggers brief tsunami warning

Heat wave hits peak as dangerous temperatures expected across US

John Kerry fights private jet claims and says the US won't repay countries for climate damage

Do dingoes eat babies? The story behind "A dingo ate my baby"

NASA celebrates anniversary of James Webb telescope with mind-blowing new picture

Heat wave scorches southern US as temperature records keep falling UPDATE

Why American communities are suing Big Oil for climate damages

Vermont faces "historic and catastrophic" flooding as Biden declares emergency

Northeast pummeled by storms and flooding that kill at least one person

What is the biggest spaceship ever built?

World's hottest day on record: July 3 temperatures hit alarming new milestone

UN human rights chief warns of "terrifying" climate change dystopia

Researchers find "unusual" interstellar debris thought to be from aliens

Space mission takes off to uncover mysteries of dark universe

Historic heatwave kills over a dozen people in US as smoke and haze from fires return

Prawns vs. shrimp: What's the difference between shrimp and prawns?

Virgin Galactic finally takes its first paying customers to space!

Virgin Galactic to launch its first commercial spaceflight

Lightning strikes plane with passengers onboard in electrifying video

Heatwave scorching southern US poses serious danger

Tropical Storm Cindy grows as Tropical Storm Bret fizzles

USDA approves sale of lab-grown meat – what is it, and what does it mean for the future?

Milky Way's supermassive black hole not as sleepy as previously thought, astronomers say

Tornado devastates another Texas town, killing multiple people

Celebrities get on the climate action train at Hollywood summit

Montana youth climate trial ends early after historic week of testimony

What does the UN high seas treaty mean for protecting the ocean?

The Arctic will be ice-free by 2030 – how on Earth did it come to this?

"Horrific" tornado destroys Texas town, killing multiple people

Indigenous witnesses testify to "traumatic loss" in Montana climate trial

Montana youth deliver explosive testimonies in climate trial: "I'm a prisoner in my own home"

Historic youth climate trial begins in Montana with emotional testimonies

Polar bears face twin threat of "forever chemicals" plus thinning ice

Study on primates re-released into the wild has important implications for animal welfare

Have scientists just discovered the secret to staying young?

New York chokes on smoke as catastrophic wildfires continue to burn

Amazon deforestation slows under Brazil's new president

Poor air quality in the Northeast leads to major game cancellations

Whistleblower says US government has actual UFOs in its possession

Flesh-eating bacteria found in Florida's massive seaweed blob

World Environment Day: All about the greenhouse effect

A seaweed mass bigger than America is threatening Florida: What should you know?

NASA scientists discuss the possibility of alien life during public meeting

World Reef Day: Will the last intact coral reefs soon be destroyed by climate change?

Private SpaceX space mission splashes down and makes history