Footage of busy city streets on a rainy day, with people rushing to their destinations under colorful umbrellas.

A mysterious grey alien wearing a cowboy hat stands in a field, with a strange liquid dripping from its fingers to the ground, set in the 1890s American West.

习惯可以改变一个人，好的习惯让我们变得更好，坏的习惯让我们不由自主。如何养成好的习惯，改变自己？

A group of friends quickly eat their food, chatting and laughing as they hurry to finish their meal together.

Learn how to safely and effectively fire a gun without revealing your position or identity.

Witness the raw power of a space shuttle launch, from liftoff to orbit, as it embarks on a mission to explore space.

Watch Ariana Grande show off her impressive dance skills in this compilation of her best performances and music videos.