Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) are two liver enzymes measured in a blood test to check the health of your liver. High AST and ALT levels are a general sign of ...

AST SpaceMobile didn’t immediately respond to a request for comment, making it unclear when it'll kick off the test operations. But the approval represents one step in its ongoing journey to use ...