किसी अंतरिक्ष यात्री को अंतरिक्ष में आकाश कैसा दिखाई देता है?

Which of the following systems can be adversely affected by a severe solar storm? 1. GPS signal accuracy 2. Power transmission systems 3. Submarine communication cables 4. Pipeline infrastructure

The term 'Space debris' refers to ________.

Aryabhata, the first Indian satellite, was launched in which year?