Space debris accumulation threatens satellites and orbital missions

The accumulation of space debris in Earth's orbit poses a significant threat to navigation, communication equipment, and manned missions. While surveillance networks track approximately 47,000 objects, the total population of fragments exceeds hundreds of millions.

Estimates from the European Space Agency and NASA indicate there are roughly 68,000 objects larger than 10 centimeters, 1.5 million objects between 1 and 10 centimeters, and over 200 million fragments measuring between one millimeter and one centimeter. Space debris includes non-functional structures such as deactivated satellites, rocket stages, mission-released components, and fragments from collisions or explosions.

In low Earth orbit, between 160 km and 2,000 km in altitude, these objects travel at speeds of seven to eight kilometers per second. Aerospace engineer Rafael Paiva Lôbo of Ideia Space notes that even an object only a few millimeters in size can damage solar panels, sensors, thermal systems, or a spacecraft's external structure. Experts express concern regarding the ‘Kessler Syndrome,’ a scenario where a critical mass of objects leads to a chain reaction of collisions that generates even more debris.