Using elevation data gathered by New Horizons during its fly-by of Pluto last year scientists have created an elevation map of the heart-shaped Sputnik Planum that shows that its central region is on average two miles deeper than the surrounding terrain.
The data even shows giant blocks of frozen water floating on the denser nitrogen ice.
Scientists now think that the dark streaks they see seasonally develop on Martian slopes are caused when frozen underground water brine is exposed to the atmosphere so that the water boils off, leaving the salt.
More here, including videos of their Earthbound experiments. On Earth, the boiling water caused avalanches and streaks, but because of the higher gravity they were not as long.
The competition heats up: SpaceX this weekend updated the prices and listed capabilities for buying a Falcon 9 launch, while also adding the price and capabilities of its not-yet flown Falcon Heavy. Here’s the link to the SpaceX page.
The damage shakes out to $62 million for a Falcon 9 rocket launch with a payload of 4,020 kilograms (8,860 pounds) and $90 million for a ride on the much-anticipated Falcon Heavy rocket, set to debut in late 2016, which can ferry 13,600 kilograms (29,980 pounds) to Mars. In addition to adding an interplanetary destination to its wares, SpaceX has also upped the payload capacity of the Falcon 9 to low Earth orbit from 29,000 pounds to over 50,000 pounds.
The Falcon Heavy is expected to put slightly more than 50 tons into low Earth orbit, half of what a Saturn 5 could do, and about two thirds what the first version of SLS will be able to do. Yet, their price to buy a launch is actually less than what every other rocket company is charging for rockets approximately comparable to the Falcon 9 and about 500 times less than the cost to build that SLS rocket (what an SLS actually costs to launch is anybody’s guess, but it certainly ain’t anywhere near $100 million). And the upgrades on the Falcon 9 have also made it better than those other rockets because it can now put 25 tons into low Earth orbit, only slightly less than the space shuttle.
That they have added the Falcon Heavy is also more evidence that they are confident that its first test flight will be this year.
A Russian court has essentially done what we would call “denying bail” and demanded the arrest of two former Vostochny executives who have been charged with taking bribes during the construction phase of the spaceport.
The court ruled to arrest at least until June 20 the former chief of Spetsstroitekhnologii firm at the Federal Agency for Special Construction, Vladimir Shamailov, and his suspected accomplice Renat Syamiullin. The court agreed with the position in prosecution that staying out of prison the suspects could flee investigation as well as try to destroy the evidence. It is expected that today’s court ruling will be challenged.
The competition heats up: Blue Origin has selected the construction company that will build its Florida rocket manufacturing facility.
This decision indicates that Blue Origin is now very confident in the designs of both its New Shepard capsule/rocket and its BE-4 rocket engine, and knows enough about both to begin committing money and resources to manufacturing both repeatedly.
