About 25,000 are pieces of obsolete satellites, rocket parts and debris — space junk orbiting out of control and posing a threat to the satellites people need. Nine in 10 useful satellites are ...

According to the European Space Agency, there are currently around 40,500 out-of-control space junk fragments larger than 4 inches (10 centimeters), up to 1.1 million pieces between 0.4 and 4 ...

They can help lay out the immediate ramifications of out-of-control spending but also the long-term negative impact, such as having to work longer or not being able to pay for the kids’ college.