TY  - GEN
TI  - In support of xeno-optimism
SN  - 0028-0836
PY  - 2003///0311
KW  - Extraterrestrial Environment
KW  - Life
KW  - Research
KW  - economics
N1  - Publication Type: Comment; Editorial
UR  - https://doi.org/10.1038/421769b
ER  -