Watch as Dwayne 'The Rock' Johnson humorously takes a literal rock for a stroll, showcasing his playful personality.

Witness a breathtaking rainbow-colored aurora in space, captured by NASA's cameras, showcasing the vibrant colors of charged particles interacting with the Earth's magnetic field.

A rare glimpse of a bald, bearded astronaut in space, highlighting diversity in space exploration.

A lighthearted moment in the Oval Office as Vice President Mike Pence shows off his breakdancing skills.

一组描述夕阳下的美景和诗情画意的文字，描绘了夕阳下的自然美景和人文情怀。

Learn about the fundamental principles of electric circuits, including voltage, current, resistance, and common components like wires, batteries, and switches.

A young man in a black hoodie takes the stage, singing to a large and enthusiastic crowd at a live concert event.