This puzzle got completely stuck — but I didn’t give up. Tight tolerances, tricky moves, and one stubborn piece made it a ...

Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our ...

Sunday Puzzle: Earth Day categories NPR's Ayesha Rascoe plays the puzzle with WBAA listener Bob Kozak of Lafayette, Indiana, and Weekend Edition Puzzlemaster Will Shortz.

Scientists made a fun puzzle game where kids solve puzzles and then watch AI try to solve the same ones, often getting them ...

An analysis led by the University of Chicago of Mars Science Laboratory Curiosity rover data may explain why the planet was ...

In honor of Earth Day on Tuesday, I've brought a game of Categories based on the word EARTH. For each category I give, name something in it starting with each of the letters E-A-R-T-H.

In honor of Earth Day on Tuesday, I've brought a game of Categories based on the word EARTH. For each category I give, name something in it starting with each of the letters E-A-R-T-H.

They reveal that the chemical composition of the deep mantle has remained almost intact since the Earth's formation 4.5 ...

Until now, Antarctica was the only continent on Earth without any known amber fossils. But sediment cores taken from below the seafloor have revealed a tiny piece of fossilized resin holding ...

In honor of Earth Day on Tuesday, I've brought a game of Categories based on the word EARTH. For each category I give, name something in it starting with each of the letters E-A-R-T-H. For example ...