August 2018
Measuring the pulse of Mars
... surface instead. “We have these giant volcanoes on Mars which indicate that volcanism has been happening in the same spot for billions...that radio signals had been received from the duo indicating that the first-ever CubeSats heading to deep space ...
October 2018
Mining the Moon for fun and profit
... Origin and SpaceX are also developing transportation architectures that require in-space refuelling. In addition, NASA has indicated a need for 100 mT of propellant per year on the lunar surface to fuel ascent vehicles as part of its programme...
August 2019
Lessons from the Sun
... magnetic impulses swept over the minefield. Further US Naval aerial surveys showed numerous additional mud pits indicative of mine detonation, and the service worked feverishly to replace the detonated mines, maintaining the harbour blockades...
October 2019
Electric orbit raising and space weather
... risk, so that they can take steps to mitigate the effects and protect their assets One answer is indicated by the different levels of degradation shown by EOR-1 and EOR-2 in Figure 2. This difference arises from a key characteristic...
October 2019
Time to overcome the expendable rocket mindset
... cost per flight would come down. Preliminary estimates indicate that when rocket life approaches jet engine life and..., which works out at about US$5000. Global market research indicates that about 2.5 million people per year would pay around US$5,000...
April 2020
Satellite mega-constellations pose threat to ground-based astronomy
... in minutes since the previous local noon. Vertical lines indicate (from left): sunset, the end of civil, nautical...refined by comparison with real observations. However, research indicates that the brightness distribution of the satellites displays a ...
