Two identical Viking craft was launched to Mars in which year?
Two identical Viking craft was launched to Mars in which year?
دو ایک جیسے وائکنگ کرافٹ مریخ پر کس سال روانہ کیے گئے؟
Explanation
The Viking program consisted of a pair of identical American space probes, Viking 1 and Viking 2, which landed on Mars in 1976.