alt Hacker NewsThis example does sound wrong to a native English speaker. It contains a subjunctive mood construct and the correct version would be:
"What if there were no stars in the sky?"
This example does sound wrong to a native English speaker. It contains a subjunctive mood construct and the correct version would be:
"What if there were no stars in the sky?"
"What if there were no star in the sky?" also works even if you want to use the subjunctive.
Note that not all native speakers of English use or prefer this type of construction. Also, this use of "were" instead of "was" is sometimes now called irrealis and considered separate from the subjunctive (which is then used to refer only to constructions like "it's important that you be here early tomorrow").