Following the rising popularity of live-streaming apps such as Meerkat, Twitter have unveiled a version of its own, called 'Periscope'.

The new app allows users to publish personal broadcasts, which can then be viewed by fellow Periscope users, and also allows them to browse past streams. The new platform already boasts a unique user in the shape of astronaut Chris Hadfield – who is publishing live-stream broadcasts from space.

Periscope lets users 'like' a video, and submit one heart or two hearts for streams that they especially like. The program is expected to be integrated with Twitter's main social media platform in the near future, and is available in the app store for iOS users – with an Android version set to follow soon.

Twitter recently announced a new 'anti-bullying' feature, read all about it here.