As the title would suggest, my third and fourth articles have just been published over at Universe Today. First off, let me assure people that I plan to post a link to UT in the near future so I don’t feel the need to do this every time a new article comes out. But since this is still a new experience to me, I naturally feel the need to share whenever a new one is published.
The first of the two, which was published on Monday, deals with a recent determination made about the source of the Moon’s water. This is based on research conducted by scientists over at the National Museum of Natural History in Paris. Back in 2009, India’s Chandrayaa-1 probe conducted a near-infrared survey of the Moon during a flyby that showed signs of surface water.
After years of speculation that claimed that the surface water – which exists strictly in icy form – was deposited there by meteors and comets, the National Museum team concluded that its actually formed by solar wind interacting with oxygen in the Moon’s surface dust. Quite the odd little occurrence; but then again, even Mercury appears to have icy spots on it’s molten surface.
The second is about a recent collaboration between NASA and SpaceX. While the latter was testing their Falcon 9 rockets, NASA filmed the performance using Infrared cameras. The information gleamed from this is helping SpaceX to develop their reusable rocket, but will also help NASA to figure out how they will land habitats and heavy equipment on the surface of Mars.
Sort of a win-win scenario, one that shows how the public and private sector are working together like never before to make the future of space exploration happen. And it’s another indication of just how serious NASA and its partners are in making a mission to Mars a reality.
Feel free to check them out, and stay tuned for the next subject of interest: Dark Matter Emanating From The Sun!
For over two years now, Elon Musk and his private space company (SpaceX) have been working towards the creation of a reusable rocket system. Known as the Falcon 9 Reusable Development Vehicle (F9R Dev) – or “Grasshopper” – this system may prove to be the greatest development in space travel since the invention of the multistage rocket. After multiple tests that reached greater and greater altitudes, the latest attempt at a takeoff and soft landing took place this past month.
Timed to coincide with SpaceX’s launch to the International Space Station (which took place on Friday April, 18th) the landing was apparently a success. Several days after the launch, Elon Musk tweeted that the “[d]ata upload from tracking plane shows landing in Atlantic was good!” This update came on April 22nd, and as of yet, no definitive data of whether the first stage landed correctly, or whether it was still in one piece by the time the recovery boats got to it.
Presumably SpaceX will provide another update in due course. In the meantime, they took the opportunity to release a rather awesome video of what the Falcon 9 Reusable should look like when successfully performing a vertical takeoff and vertical landing (VTVL). The video has accumulated an astonishing 3,598,143 views in the last two weeks, which is indicative of the level of interest this project and its impications have garnered over the past few years.
Meanwhile, the resupply mission went off without a hitch. Officially designated as CRS-3, this mission was even more significant due to the fact that its Falcon 9 launch vehicle featured the same retractable landing legs and the ability to soft land as the Grasshopper test rocket. However, in the case of the ISS mission, it was the first time where a Falcon 9 was tested in a real-world scenario where the rocket would return to Earth after reaching Low Earth Orbit (LEO).
Though the rocket was successfully picked up by the ISS, the jury is still out on whether or not the soft landing was a success or not. To minimize any risk, the first stage of the Falcon 9 attempted to “soft land” in the Atlantic. Unfortunately, according to Elon Musk, due to “13- to 20-foot waves… It’s unlikely that the rocket was able to splash down successfully.” Using telemetry data gathered from a SpaceX spotter plane, it appears that everything else went to plan, though.
Because of the rough seas, though, the retrieval boats couldn’t make it to the landing site, and thus the rocket is unlikely to be recovered. In the meantime, SpaceX will spend the following days and weeks analyzing more detailed data from the launch, and then update the Falcon 9 design and launch protocol accordingly. However, it is clear at this point that these latest tests are not being considered a failure, or reason to cease in their efforts.
As Musk himself explained in a series of public statements and interviews after the launch:
I would consider it a success in the sense that we were able to control the boost stage to a zero roll rate, which is previously what has destroyed the stage — an uncontrolled roll… I think we’re really starting to connect the dots of what’s needed [to bring the rocket back to the launch site]. I think that we’ve got a decent chance of bringing a stage back this year, which would be wonderful.
Considering the benefits of cheap, reusable rockets, and all the things they will make possible – space-based solar power, the construction of a Moon settlement, missions to Mars, the construction of a Space Elevator – there’s simply no way that a single unsuccessful rocket recovery will deter them. In the meantime, be sure to check out this video of what a successful Falcon 9 VTVL test looks like. Hopefully, we’ll be seeing a real-world example of this happening soon: