The metabolic ceiling represents the maximum number of calories that a body can actually burn. For humans, it is believed to ...

Yes: bottled water has status, branding, exotic sources, health claims. If you like the ritual, the packaging, the feel of it ...

The footage offers an unprecedentedly colorful look at the extreme physics at play—revealing valuable information for ...

When athletes devote large amounts of energy to running or cycling, they unconsciously cut back on energy output elsewhere.

When ultra-runners lace up for races that stretch hundreds of miles and days, they're not merely testing their mental grit ...

Across The Unknown starts at the very beginning of the journey, presenting the entirety of the opening two-part episode, ...

Over the past five years, private sector funding for fusion energy has exploded, with the total invested is approaching ...

High-speed color images from a fusion machine reveal lithium turning greenish-yellow as it traces magnetic lines.

New footage from the British fusion firm Tokamak Energy shows unbelievably hot plasma imprisoned in a magnetic field.

The hydrogen bomb, unlike the atomic bomb used on Hiroshima, generates energy through fusion by fusing isotopes of hydrogen, ...