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This is Scientific Americans' 60-second science.

I'm Steve Merski.

There's three strategic trends that I see in space.

General J. Raymond, commander of Air Force Space Command in Colorado Springs.

He recently visited Scientific American to talk about Space Command, which is responsible for space and cyber for the Air Force.

One is space is congested. We track 23,000 objects in space. We provide the conjunction

assessment warning, if you will. So for every object in space, we do the analysis on every

other object in space to see if there are potential collision. And if there's a potential collision, we make the warning for satellite operators around the world to maneuver their satellites to keep from that collision from happening.

I see the trends of that growing. If you look at the numbers of launches that are occurring, the numbers of launches are up largely because the cost of launch has gone down. So the access to space has gotten easier. Not just are the numbers

of launches going up, but the numbers of satellites on each launch are also increasing. And so I see

that congestion just growing in the future. And that's something that we are obviously working to help mitigate

that growing strain. The other thing that is happening in space is that we are becoming more contested.

And I think it's clear that space is a war fighting domain just like air land and sea.

And we are seeing threats across the spectrum, everything

from low-end reversible jamming of GPS satellites all the way up to high-end kinetic

destruction, which we saw in 2007 when China shot down their weather satellite. And then the last

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