Jesus died once for the sin of all. If he lived and died only once and that was on Earth, how could aliens from possibly multiple other planets know about Him or be saved? This leads to the conclusion that there are no aliens.
“how could aliens from possibly multiple other planets know about Him or be saved”
When we meet them we can ask them.
:-)
How were all the Ancient Chinese, Australians, Pacific Islanders, North and South Americans, etc. expected to hear the Good Word when it was primarily limited to the Middle East and parts of the Roman Empire?
Or, perhaps, the Adams and Eves on other planets may have chosen to actually obey God and resist the temptation in the garden, thus precluding their need for a Savior.