It is Earth Day and NASA would like your help celebrating our planet.
Earth Day is held every April 22 to raise awareness about environmental problems and encourage people to take better care of our planet.
To mark the occasion, NASA is asking people to take selfies of themselves and post them online with the hastag of ‘global selfie.’
The pictures will be used to create a mosaic image of the earth.
You can post your pictures on twitter, Instagram, Facebook, Google-plus or Flickr.