Tofauti kati ya marekesbisho "Sayansi"

Replacing Astronaut-EVA.jpg with File:Bruce_McCandless_II_during_EVA_in_1984.jpg (by CommonsDelinker because: File renamed: Criterion 2 (meaningless or ambiguous name)).
(Replacing Astronaut-EVA.jpg with File:Bruce_McCandless_II_during_EVA_in_1984.jpg (by CommonsDelinker because: File renamed: Criterion 2 (meaningless or ambiguous name)).)
 
==Aina za sayansi==
[[Picha:Astronaut-Bruce McCandless II during EVA in 1984.jpg|thumb|right|250px|Mtu aliyerushwa hadi angani. Kufikia katikati ya [[karne ya 20]] [[binadamu]] ameweza kukua kisayansi na hivyo kuvumbua [[teknolojia]] zilizomwezesha kuruka na kuelea anga za juu kabisa za [[Dunia]] kwa mara ya kwanza na kuchunguza [[Anga la nje]].]]
 
Kuna sayansi mbalimbali ambazo huainishwa katika makundi yafuatayo: