Earth's recent asteroid visitor might've been a piece of the moon

[Admin]

Earth's temporary asteroid friend last year was a chunk of its real moon that had been blasted into space thousands of years ago, scientists find.

Earth's recent asteroid visitor might've been a piece of the moon : Read more

 

[dmm]

Earth's temporary asteroid friend last year was a chunk of its real moon that had been blasted into space thousands of years ago, scientists find.

Earth's recent asteroid visitor might've been a piece of the moon : Read more

"Earth's recent asteroid visitor might've been a piece of the moon"

Not "might". "May." "Earth's recent asteroid visitor MAY have been a piece of the moon". Conditional tense, not subjunctive (aka "hypothetical").