PARIS, May 5 (Reuters) - The European Space Agency said

on Monday it was studying the impact of U.S. budget proposals

that include cuts to NASA moon programmes in which it has a role

and remained open to co-operation with the U.S. space agency.

Ministers from ESA's governing council will discuss

"potential actions and alternative scenarios" at a meeting in

June, the 22-nation European agency said in a statement.