Satellites falling: 'Space dust' responsible?
PTI: Washington, Feb 27 2013, 20:55 IST
Do these plasmas emit radio signals, and if so, at what frequencies and with what power?" she said in a statement.
Now, through experiments Close has led at the Max Planck Institute for Nuclear Physics in Germany, she has proof that particles that mimic space dust can indeed cause trouble.
The researchers fired tiny dust particles at targets resembling satellites at speeds of 60 kilometres per second.
"We found that when these particles hit, they create a plasma or quasi-neutral gas of ions and electrons, and that plasma can then emit in the radio frequency range," Close said.
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