Life may have emerged from a surprisingly simple network of chemical reactions long before cells or genes existed.

The Post welcomes letters up to 250 words on topics of general interest. Letters must include full name, home address, day and evening phone numbers, and may be edited for length, grammar and accuracy ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas ...

Researchers say bisphenols, PFAS and flame retardants can still be present in some food packaging, and highly processed foods are contaminated by plastic chemicals on their route from a factory to a ...

A double explosion, in which a dying star split, then recombined, may be a long-hypothesized but never-before-seen "superkilonova." ...

Matt Webber is an experienced personal finance writer, researcher, and editor. He has published widely on personal finance, marketing, and the impact of technology on contemporary arts and culture.

Gyatso Bista remembers the sacks of kutki. As a child learning to become a healer in Nepal’s kingdom of Lo Manthang, Bista ...

Dec. 21, 2025 Superconductors promise loss-free electricity, but most only work at extreme cold. Hydrogen-rich materials changed that—yet their inner workings remained hidden because they only exist ...