Satellites: Adverse Effects on Astronomy

Debate between Lord Cromwell and Lord Vallance of Balham

Wednesday 20th November 2024 Lords Chamber

[Lord Vallance of Balham (Lab)]

The noble Lord makes an extremely important point about the size of satellites, which is one of the problems with the interference from both radio and optical imaging. The smaller satellites, which the UK is extremely good at making, will become an increasing part of the solution. On orbit, we have a commitment to low orbit through the OneWeb approach—where there are about 700 in low orbit—and to higher orbit where it is appropriate to do so.

[Lord Cromwell (CB)]

My Lords, the global space industry is said to be worth about $500 billion. As we launch more and more material into space, which is largely unregulated, the orbits around this planet are getting clogged with blizzards of flying junk. A single bolt took out a French satellite not long ago. Does the Minister agree with me that the environment around our planet is every bit as important as the environment on our planet? Will he commit to raising public awareness of this underappreciated tragedy?

[Lord Vallance of Balham (Lab)]

My Lords, the question about the number of things circulating in space and the implications of that is very important indeed. The number of satellites projected to be launched by 2030 could be as high as 400,000, with estimates ranging from 50,000 to 400,000. This is a very big issue. The amount of space debris is increasing as well, which also contributes to the problem. The UK promotes the sustainable use of space and there is a range of initiatives, from regulation and standards to research, space observation and monitoring capabilities, as well as technologies for active debris removal and in-orbit servicing to try to make things last longer, all of which we will continue, along with the notion of satellite refuelling. This is a growing problem and one that we have raised with the United Nations body and will continue to do so.