A mission that uses SpaceX's Dragon capsule to help bring chunks of Mars rock back to Earth for analysis could launch as early as (), researchers say.
A.2025
B.2023
C.2022
D.2021
- · 有3位网友选择 A,占比30%
- · 有3位网友选择 D,占比30%
- · 有3位网友选择 B,占比30%
- · 有1位网友选择 C,占比10%