At high doses, cosmic rays can tear through DNA molecules and damage biological tissue. Prolonged exposure to cosmic ...

What happened when Earth’s magnetic shield collapsed 41,000 years ago? A new study suggests that this dramatic event, known as the Laschamps Excursion, may have pushed early humans to adapt in ...

Very few long-term, peer-reviewed studies have been conducted specifically on Wi-Fi radiation’s health effects on humans, experts told PolitiFact.

FLASH radiation treatment – which delivers therapeutic doses of radiation in a fraction of a second – may hold promise as a potential treatment for tough-to-kill tumors, a first-in-human study ...

The haze above Mars is the planet’s atmosphere, as seen by the NASA probe Viking 1. It is too thin to protect humans from space radiation.