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

The Moon is far older than we once believed — but its fiery past has kept its true age hidden. New research reveals that, a ...

Mars’ strangely small mass still puzzles planetary scientists. Definitive answers as to why are still hard to come by.

Earth is full of mysteries that scientists have yet to fully understand. Despite years of research, some phenomena remain ...

People who haven’t lived in the Pacific Northwest often puzzle (get it?) at how we make it through a long winter defined by ...

NPR's Ayesha Rascoe plays the puzzle with listener Heather Reed of Eureka Springs, Ark., and puzzle master Will Shortz.

One of the easiest ways to provide stimulation is through the use of interactive dog toys, like the best dog puzzle toys. "All dogs need to eat, so using [puzzle toys] to make their life more ...

The handedness is so universal that it must have its origins in the primordial soup from which life on Earth emerged. But the molecules can exist in their mirror image too. It’s just that life ...

Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Connections puzzles. Today's Strands title gave me a certain ...

But we also house world-class chemists. You might not see their labs - until now - but you can feel the safer environment they create for other rare Earth elements. These, along with the lanthanides, ...

The jungles of Siam are hiding all sorts of secrets, and scattered across it is a series of puzzles that might just be the hardest in the entire game. When you first find the hidden pyramid as par ...

A study of more than 26,000 white dwarf stars has confirmed a long-predicted but elusive effect in these ultra-dense, dying stars: Hotter white dwarfs are slightly puffier than cooler ones, even when ...