Treating tumors independently of oxygen: Photodynamic therapy uses hydrogen peroxide instead

Photodynamic treatment of cancer is based on administering an initially inactive substance that is only activated in the ...

In tight quarters, Artemis II astronauts stay fit with the flywheel

The human body isn't meant to exist without gravity. The astronauts aboard Artemis II are combatting potential physiological damage using an elegantly engineered exercise machine called the flywheel.