Top network posts

• 9 Why cannot supersonic retropropulsion, for use in the Red Dragon lander be tested on Earth?
• 9 The Tambora eruption caused the "Year without a summer". How much would such an eruption today affect the output of solar pv on a global scale?
• 8 Why doesn't the SpaceX web-cast show the telemetry, (altitude and speed) for the first stage during recoveries?
• 6 Is the Falcon 9 second stage engine throttled down to limit maximum acceleration
• 5 Can Red Dragon generate electrical power after a Mars landing, or will it rely only on battery power?
• 5 Were Crew Dragon's touch screens tested under 3-5 G on Earth in a centrifuge?
• 5 How many square kilometres of offshore wind farms would be required to replace the closing of a 4GW nuclear power station
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