Birds have heavily evolved for not only flight, but reproduction. Bigger, brighter feathers, even though they may reduce survival of the individual bird, will allow for a higher chance of mating. Simple tests have been concluded and proved this.
Many transition fossils have been found, and while many have not, they are looking for them. If they have found them all, many archeologist and paleontologist would be out of a job.
Scientist have indeed created single cell organisms from a chemical soup and lightning. It's been done in labs time and time again.
Simple biology will prove there are many chromosomal variances. And many of them can, and do indeed happen. Also, that statement is not how natural selection works. And, females play the biggest role in evolution for any species that produce sexually.
The "errors" in DNA is the vary basis of natural selection. If DNA never changed, was never altered, then we would still be swimming around thermal vents in the ocean.
Evolution has much evidence, and their are simply no laws in science. Not even gravity. We actually have a much better understanding of evolution than we do gravity, which is also a theory.
No life on Mars does not disprove evolution. It would only mean Mars has never been capable of supporting life. And radio silence from space hardly means anything. If we recieved a message today from the nearest star, it woud have been sent when the Neanderthal walked the earth.