BRUSSELS — The United States has hit out at an upcoming EU space law that it says would place “unacceptable regulatory burdens” on American space companies. In a response to a consultation published Tuesday, the U.S. State Department said it has “deep concern” about the EU’s proposed Space Act. It accuses the EU of going after successful U.S. space companies via the legislation, saying its rules “appear targeted specifically against U.S. companies due solely to their size, prominence, and