official news from : https://bit.ly/2QkyIbY NASA will host a media teleconference at 11 a.m. EDT on Wednesday, July 27, to discuss the architecture for its Mars Sample Return campaign.
official news from : https://bit.ly/2QkyIbY NASA will host a media teleconference at 11 a.m. EDT on Wednesday, July 27, to discuss the architecture for its Mars Sample Return campaign.