OTTAWA — NASA's first chief economist has been named president of the Canadian Space Agency.
NASA is adding the X-70 to its research plans as it explores new ways to develop aircraft and improve flight technology.
The space observatory re-entered the Earth's atmosphere over Indonesia on Wednesday ...
NASA had planned a spectacular rescue mission to save an important space observatory. But the mission failed—and that meant ...
这段图片展示了GRB221009A的X射线——迄今为止观测到的最亮的伽马射线暴。NASASwiftA.Beardmore(莱斯特大学) ...