It's tricky to make an exact copy of yourself. Or at least it is for cells undergoing mitosis, where cells replicate everything inside of them, including their neatly packaged DNA, then split in half.

While recent warm weather across the Las Vegas Valley ushered in the start of the outdoor swimming season, it also initiated a renewed push by Clark County officials to promote drowning prevention ...

Ten weeks of presentations cover forest ecology, global pollution, biodiversity genomics, and other environmental topics at ...

The Shasta County Office of Education and the Friends of the Schreder Planetarium are hosting a free family-friendly science festival to celebrate 101 years of planetariums worldwide. The festival is ...

At world-first Santa Marta climate meeting, delegates say it was ‘euphoric’ to finally be focusing on concrete solutions After a landmark climate meeting in Santa Marta, Colombia, where nearly 60 ...

Promoters of free birthing reject any type of medical intervention during pregnancy or delivery. The movement has been trending on social media, but critics warn it poses serious risks. By Dawn ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. A view of Earth as the Artemis II crew travels towards the moon. By the time you read this ...

In one of Kurt Vonnegut’s stories, God leaves it to humans to think of a purpose for everything, including "all this." Purpose both gives us something to live for and provides the foundation to pursue ...

Years ago, my 3-year-old daughter fell in a pool after climbing over the security fence. It was a winter day and she was wearing a sweater, jeans, socks and shoes. I was turned around, a few steps ...

NASA Administrator Jared Isaacman speaks at an agency town hall Dec. 18, the day after he was sworn in as administrator. Credit: NASA/Bill Ingalls It took a year, but the Jared Isaacman era at NASA ...

Ancient scientists can be easy to dismiss. Greek philosopher Thales of Miletus, often described as the West’s first scientist, believed the whole Earth was suspended on water. Roman encyclopaedist ...

CrunchLabs, the maker of STEM activity kits for kids founded by NASA engineer turned YouTube science communicator Mark Rober, has launched Class CrunchLabs, a collection of free standards-aligned ...