For weeks now the Senate Commerce Committee has been threatening to subpoena NASA to obtain documents related to the agency’s exploration plans, citing the frustration in not getting documents from NASA about its plans despite numerous requests. Now, finally, it appears that the Senate reached its breaking point. NASA Watch reports that the committee has issued a subpoena for the documents. There has been no formal announcement, although a committee spokesman confirmed the subpoena to Space News. A NASA spokesperson told both publications what NASA officials, including administrator Charles Bolden, has previously said on this subject: that the selection of the Space Launch System (SLS) is so important that the agency and the administration need to take the time required in order to get it right.