And the sun is a star that gives out heat and light ... DR BECKY: Hi, I’m Dr Becky and I am a space expert. Now, the solar system and all the planets in it were formed at the same time, from ...

"Silicon semiconductors aren't stable in space because of proton irradiation ... "You can heal this by thermal annealing, or heating the solar cell. But we might find ways to fill the traps ...