Weighing over 444 tonnes and still growing, the ISS has been in orbit since 1998, so it's easy to take this massive space station for granted as it orbits the Earth at an altitude of about 250 ...

The International Space Station (ISS) seen orbiting the Earth in May, 2011. The station needs regular orbit boosts to stay at a safe altitude.

Singapore's Nanyang Technological University has successfully launched a satellite from the International Space Station (ISS) for the first time. The Aoba-Velox III was delivered to ISS by the ...

Until then, NASA explained that the ISS, orbiting Earth at an average altitude of around 254 miles, will continue to deliver enormous scientific, educational, and technological developments to ...

The ISS orbits at a height of about 402 kilometers, or 250 miles (we'll explain why we describe it as "about" shortly) and is traveling at 7.6 kilometres (4.7 miles) per second, which is the ...

"Correction of the ISS orbit altitude to avoid 'space debris' has been performed," the agency tweeted in translated Russian remarks. "For this, the engines of the ProgressMS18 ship were used.

UPDATE: Since we published this story last week, Russia announced its intention to de-orbit the ISS and drop it into the ocean in 2020, at the end of the station's planned mission. The final ...

Higher altitude also challenges visiting vehicles. The hard limit of 460 km is because the Soyuz and Progress vehicles are certified to an altitude of 460 km. The ISS needs to be frequently ...