Are Comets Made of Antimatter?
If you look on the internet you will find many websites saying that comets are made of antimatter. Some of these sites have what sounds like good evidence to back up the basic idea. These sites have mathematical formulae, and the things you would expect from serious scientific sites. I would note that one of the things said in several of these sites is that the body of the comets appears to be black. I cannot see the logic of this. Antimatter should reflect light in the same way as normal matter. Whether comets are made of matter or antimatter, if they appear black, it presumably simply means their surface is covered with black material, perhaps something like tar. I do not consider the colour of comets to be evidence one way or the other. Most sites about comets say they are made of ordinary matter. There are a lot of comets each year, and if you consider the billions of years that our Solar System has existed, there have been many collisions with planets. If a comet of even moderate
