Learn about email, its history, and how it works, including sending, receiving, and managing electronic messages.

A young girl's joyful reaction as she chases a yellow balloon, capturing a sweet and carefree moment of childhood innocence.

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

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.

了解中国唐代伟大诗人杜甫的故事，他如何从贫穷学士成为官员和诗歌奇迹的创造者，及其对生命和人民的热爱和关怀。

Learn about the life and achievements of Bill Gates, from his childhood to co-founding Microsoft and becoming a philanthropic leader.

A woman drives a car through various roads and conditions, showcasing everyday driving scenarios.