Putin's presidential planes: what we know
Ilya Sutskever, co-founder of OpenAI who helped oust Sam Altman, starts his own company
Anarchy hampers aid efforts in Gaza, despite daily lull in fighting
How heat affects the brain
Dozens of people die as intense heat grips Mecca during the Hajj pilgrimage
On the occasion of the anniversary of the Titan submarine, the world rethinks the exploration of the deep sea
Israel and Hezbollah are playing a risky “tit for tat”, leaving the region in difficulty
An avian flu pandemic in people? Here's what it might look like.
House GOP spending chief Tom Cole defeats Challenger in Oklahoma primary
