每日一图



建造未来的漫游车

2019-11-11

A student from Sinte Gleska University, an accredited tribal university on the Rosebud Sioux Reservation, works to build a model rover for a NASA...


安塔瑞斯火箭的正面

2019-10-30

A Northrop Grumman Antares rocket is seen as it rolls out to Pad-0A, Tuesday, Oct. 29, 2019, at NASA's Wallops Flight Facility in Virginia. Northr...