Filmmaker Bertie Gregory's new documentary special captures the extreme challenges facing the world's fastest land animal.

Futurist Michio Kaku sees humans doing ballet on Mars and projecting their brains into the cosmos. And aliens? Oh, they're ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what you’ll need to catch a glimpse.

The crackle of a campfire beneath a star-studded sky; the scent of cedar in old-growth forests; the thunder of a packed ...

Tech companies are claiming machines more intelligent than us and capable of having their own agendas are just around the ...

For deep reef divers, descending into the ocean’s mesophotic layer can feel like exploring the moon. Discovering never-before-seen marine species is part of the mission.

The beginning of January is when many people traditionally resolve to start a new, though sometimes challenging, habit and ...

As we begin a new year, millions of Americans will make resolutions they won't keep. We'll vow to lose weight, save money or ...

With findings on Earth’s polar extremes and its innermost core, scientists shaped how we look at the planet in 2025 in ...

Scores of baby penguins bravely dive off a massive 50-foot cliff for their first ever swim in the Antarctic below, new footage shows.

Classic, nostalgic sitcoms like The Honeymooners and The Three Stooges are known for having TV marathons broadcast on New ...

Saturday, Jan. 3 brings a dazzling night sky, featuring both the year’s first supermoon and peak of the first major meteor ...