Feasibility Analysis for a Manned Mars Free - Return Mission in 2018 technical paper is online
From
In 1998 Patel et al searched for Earth – Mars free – return trajectories that leave Earth, fly by Mars, and return to Earth without any deterministic maneuvers after Trans – Mars Injection. They found fast trajectory opportunities occurring two times every 15 years with a 1.4 – year duration, significantly less than most Mars free return trajectories, which take up to 3.5 years. This paper investigates these fast trajectories. It also determines the launch and life support feasibility of flying such a mission using hardware expected to be available in time for an optimized fast trajectory opportunity in January, 2018.
The authors optimized the original trajectory using patched – conic approximations ,and then modeled the trajectory using numerical integration with high fidelity force models and the JPL planetary ephemerides. We calculated an optimum trajectory launching in early January, 2018. At the Mars encounter, the spacecraft will pass within a few hundred kilometere of the surface. We investigated the Earth reentry conditions and developed some aerocapture options to mitigate G – loads on the returning crew. We also describe tradeoffs and studies necessary to develop the Thermal Protection System (TPS).
To size the Environmental Control and Life Support System (ECLSS) we set the initial mission assumption to two crew members for 500 days in a modified SpaceX Dragon class of vehicle. The journey is treated as a high – risk mission, which drives towards reliable — but minimalist — accommodations and provisions. As such, we investigated State Of the Art (SOA) technologies that would meet only basic human needs to support metabolic requirements and limited crew comfort allowances
Spaceref has a review of the details of the plan
One aspect is if there is a large solar mass ejection then the crew would likely be lost.
See more and subscribe to NextBigFuture at 2013-03-04 10:46:20 Source: http://nextbigfuture.com/2013/02/feasibility-analysis-for-manned-mars.html
Source:
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Lion’s Mane Mushroom
Mushrooms are having a moment. One fabulous fungus in particular, lion’s mane, may help improve memory, depression and anxiety symptoms. They are also an excellent source of nutrients that show promise as a therapy for dementia, and other neurodegenerative diseases. If you’re living with anxiety or depression, you may be curious about all the therapy options out there — including the natural ones.Our Lion’s Mane WHOLE MIND Nootropic Blend has been formulated to utilize the potency of Lion’s mane but also include the benefits of four other Highly Beneficial Mushrooms. Synergistically, they work together to Build your health through improving cognitive function and immunity regardless of your age. Our Nootropic not only improves your Cognitive Function and Activates your Immune System, But it benefits growth of Essential Gut Flora, further enhancing your Vitality.
Our Formula includes:
Lion’s Mane Mushrooms which Increase Brain Power through nerve growth, lessen anxiety, reduce depression, and improve concentration. Its an excellent adaptogen, promotes sleep and improves immunity.
Shiitake Mushrooms which Fight cancer cells and infectious disease, boost the immune system, promotes brain function, and serves as a source of B vitamins.
Maitake Mushrooms which regulate blood sugar levels of diabetics, reduce hypertension and boosts the immune system.
Reishi Mushrooms which Fight inflammation, liver disease, fatigue, tumor growth and cancer. They Improve skin disorders and soothes digestive problems, stomach ulcers and leaky gut syndrome.
Chaga Mushrooms which have anti-aging effects, boost immune function, improve stamina and athletic performance, even act as a natural aphrodisiac, fighting diabetes and improving liver function.
Try Our Lion’s Mane WHOLE MIND Nootropic Blend 60 Capsules. Today Be 100% Satisfied Or Receive A Full Money Back Guarantee Order Yours Today By Following This Link.