Washington, June 27 Two journalists have built an online service that would let twitter users around the world to spot the International Space Station (ISS) without a telescope.

The online service, built by Dutch science reporter Govert Schilling and journalist Jaap Meijers, would let people know when they have to look up to see the ISS pass.

People using Twitter can now receive an alert when the ISS will be passing at the location in their Twitter profile.

All they have to do is follow the Twitter account @twisst: www.twitter.com/twisst

The service has been operating in a test phase for a while now.

The website accompanying the Twitter messages will be launched in the coming week, with lots of extra information such as a manual 'Spotting the ISS'.

As a very bright spot, the International Space Station crosses the sky in about three minutes.

The space station is visible only for a few minutes on every pass and at different times, which makes it important to know when and where exactly it will be visible.

That information could already be found on several websites and specialized e-mail or phone services, but a global service that alerts ordinary people to the ISS passes at their location did not yet exist.

But, that is now possible through Twitter.

Twisst may even be the first service on Twitter that sends out such highly personalised information. Twisst sends an alert to every follower personally, wherever in the world that person may be. (ANI)