Scientists think the impact of an asteroid or comet may have cleared the way for dinosaurs to adapt and flourish.

The infamous US satellite phone company re-launches as a niche operator after new owners saved its satellites from destruction.

Bankrupt US satellite phone firm Iridium could yet be saved, according to its main backer, Motorola.

Bankrupt US phone firm Iridium is to send 66 satellites worth $6bn out of orbit to burn up in the Earth's atmosphere.

Shuttle engine problems plus other sci-tech news in brief.

Despite the failure of Iridium, another global telecommunications company is set to launch its satellite phone service, as Richard Quest reports from Geneva.

Troubled phones firm Iridium has turned to bankruptcy laws after defaulting on huge loans.

Russia has put a further seven satellites into orbit to complete its part of a contract with the multinational consortium, Iridium, for a worldwide telecommunications system.

A new chapter in the telecommunications revolution comes closer on Saturday, with the launch of five satellites from California.