Living organisms share an ancestor called the last universal common ancestor, or LUCA. LUCA is estimated to have lived approximately four billion years ago. All plants, animals, and microbes can trace ...

Scientists call this speck LUCA — the Last Universal Common Ancestor. Since the concept of LUCA first emerged, it has ...

How much do your genes determine how long you'll live? It's a question that fascinates us, and one that's been debated for decades. For years, the answer seemed settled – genes account for about 20–25 ...

Did you know one of the largest collections of marine DNA in the entire world is hiding just outside D.C.? In today’s episode of “Matt About Town,” we’re taking an even deeper dive into the ...

Practice projectile motion with fully solved physics problem examples. This video walks through step-by-step solutions to help you understand equations, motion components, and problem-solving ...

Twenty canonical amino acids exist in nature, encoded by the universal genetic code and translated by the proteins and RNA that make up the ribosomal machinery. Expansion of the genetic code to new ...

17th February 2026: We updated our list of working Universal Tower Defense codes. Universal Tower Defense is a classic Roblox tower defense game that’s packed with characters from popular anime and ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Here’s what you’ll learn when you read this story: All life on Earth can be traced ...

Tom Bowen is a senior editor who loves adventure games and RPGs. He's been playing video games for several decades now and writing about them professionally since 2020. Although he dabbles in news and ...