We've deployed so many satellites into space over the last few decades that we now have a massive orbital junk problem. The European Space Agency (ESA) noted in its Annual Space Environment Report ...

aggregates and water—are made of recycled materials, saving more than 6,000 tons of natural resources.

By John Lee. Prime Minister Mohammed S. Al-Sudani has launched the commercial operation of the $200-million Najmat Al-Samawa ...