India launches 4-inch satellite

A lightweight satellite designed by students that can be held in the palm of the hand has been launched by Indian scientists, burnishing the country's credentials in miniature design technology.

The 10-centimetre (four-inch) cube satellite, named Kalamsat V2, weighs just 1.2 kilograms (2.6 pounds), according to students from the private Space Kidz India group who designed the celestial unit.

It was launched from the Sriharikota space centre in southern Andhra Pradesh state on Thursday, drawing praise from Prime Minister Narendra Modi.

"Heartiest congratulations to our space scientists for yet another successful launch of PSLV. This launch has put in orbit Kalamsat, built by India's talented students," Modi tweeted.

The launch was another feather in the cap for the Indian Space Research Organisation (ISRO), which won Asia's race to Mars in 2014 when one of its spacecraft reached the Red Planet on a shoestring budget.

The Kalamsat V2 was built at a cost of 1.2 million rupees ($16,900). It will serve as a communications satellite for ham radio transmissions used by amateurs for non-commercial activities. In 2017 an even smaller satellite, weighing just 64 grams and designed by the same group, was launched in the US aboard a NASA rocket, but never reached orbit.