For the first time in the history of the Amateur Radio on the International Space Station (ARISS) program, youngsters in India and Portugal got the chance to learn about life in space firsthand via ham radio. At the controls of NA1SS, ISS crew member Suni Williams, KD5PLB, fielded questions February 24 from youngsters at Vasant Valley School in New Delhi, India. A couple of days later, she got on the air to speak with students at Camilo Castelo Branco School in Carnaxide, Portugal. Williams assured one Vasant Valley student that the ISS generates no appreciable pollution in space.

"We're just orbiting, so we're not giving off any pollution while we're up here," Williams responded. "Sometimes, some things fall off the space station, like little pieces of dust or little pieces of metal, but that's all, really, the pollution we're putting out up here."