Although there is talk of extended spaceflight by humans, there are at present no definite working plans to colonize the moon or any of the nearby planets ​ — much less the other galaxies.
और विभिन्‍न राष्ट्रों के वर्तमान अंतरिक्ष कार्यक्रम इतने महँगे पड़ते हैं कि उन्हें घटाया या त्यागा जा रहा है ।