During its voyage to earth 's closest neighbor , mariner 2 conducted experiments to measure the density and velocity of the solar winds emitted by the sun .
在前往地球最近的邻居的路上,水手二号开展测量太阳风密度和速度的实验。
Scanning with infrared and microwave radiometers , mariner 2 found that the clouds enveloping the planet are quite cool , but that the surface temperature is very hot : around 900 degrees fahrenheit .
A 17-year-old us mariner steered his battered sailboat into a southern california harbour on thursday to complete a gruelling 13-month voyage and become the youngest person to sail around the world alone .