Scientists Invent Engines to Eliminate Space Debris Crisis Moscow, 12 Mar (ONA) --- Scientists from the Russian Siberian Aerospace University have invented engines for spacecraft that burn as soon as they leave their orbit and enter the atmosphere. The scientists noted that the service life of small spacecraft is 3-5 years, and most of them are not equipped with special devices to remove them from orbit and get rid of them permanently, so they remain in space for ...