A Meteor Could Survive in a Vacuum Being Blasted by Solar Radiation

Tardigrades can survive for extended periods of time in a vacuum being blasted by solar radiation with no water. So this meteor coming here might have alien semen on it. In all likelihood, like it's doubtful that it would survive the incinerating impact of going through the atmosphere and then smashing into the earth. But even if they didn't, a fragment of what they were, their DNA might survive.