FIM DE ANO
A ameaça crescente do lixo espacial
December 31, 2024 -
O aumento recorde de lançamentos de satélites e lixo espacial tornarão
a órbita baixa inutilizável a menos que os países cooperem e partilhem
dados para gerir a mais acessível região do espaço.
On August 6, one of China’s Long March 6A rockets broke apart in low-Earth orbit (LEO) and created a debris cloud consisting of more than 300 pieces, according to U.S. Space Command.
Beijing launched the Long March from the Taiyuan Satellite Launch Centre to deliver 18 G60 satellites into orbit.
“There has been no immediate threat to the International Space Station observed as a result of this breakup,” said Rob Margetta, public affairs officer at NASA headquarters.
The rocket broke apart 810km above the Earth’s surface, and the debris poses “a significant hazard to (LEO) constellations” below 800km altitude, according to Slingshot Aerospace’s Global Sensor Network.
As recently as June, a defunct Russian satellite exploded, forcing nine astronauts on the International Space Station to shelter from thousands of shards for an hour. Russia’s Roscosmos ordered their astronauts to shelter in their return spacecraft, while the U.S. astronauts took refuge in a SpaceX Crew Dragon and Starliner.
Since the Space Age began in October 1957, with the launch of Sputnik 1, there have been over five thousand launches. Each launch typically has several objects associated with it that may remain in orbit. The U.S. has catalogued about 120 million objects over the years.
- Chinese rocket breaks apart in low-Earth orbit, creating a cloud of space debris, US Space Command says (CNN)
- SpaceX Starlink satellites made 50,000 collision-avoidance maneuvers in the past 6 months. What does that mean for space safety? (Space.com)
- Growing Threat of Space Junk (Daily Galaxy)
- Global push for cooperation as space traffic crowds Earth's orbit (Reuters)