Astronomers have NO DATA to support this assertion.
Its all statistical guess work, based upon their “faith” in evolution.
“If we cooked up from the soup here, then with all of the trillions of planetary opportunities out there, somebody’s probably bubbled up somewhere’s else!”
The Theory of Evolution specifically excludes anything to do with the origin of life (whether through creation, or abiogenesis).
So God created a universe with billions of galaxies and trillions of stars, and then only created....us. That was a pretty shabby trick.
The question is a non sequitur. The answer entirely depends on whether or not God decided to put life on other planets, and as far as I can tell He is under no obligation to inform us on that point.