#Tag · 𑐴𑐶𑐟𑐶

Spaceflight 🚀 @spaceflight@spacey.space · 3 weeks ago

Content Warning

The time of travel to #Mars can be reduced from nine months ⏳ to about four months. This would reduce #radiation ☢️ doses by over 60% compared to the Hohmann transfer. This trajectory uses 4.62 km/s of deltaV. #SpaceX #Starship is designed for about 6 km/s of deltaV. The return velocity of #Apollo was about 11 km/s https://marspedia.org/Aerobraking

#Aerobraking #HumanSpaceflight

Spaceflight 🚀 @spaceflight@spacey.space · 2 weeks ago

Content Warning

For a trip to #Mars 🔴, decreasing travel time by 10% necessitates twice as much fuel, while cutting travel time in half requires ten times as much. May prove worthwhile when considering factors such as decreased exposure time to #radiation ☢️ for crewed 👩‍🚀 missions. Extra speed must be lost at Mars. Many Mars missions do this, taking about 6 6️⃣ to 7 months for transit to the Red Planet. https://marspedia.org/Hohmann_transfer#Type-I_and_Type-II_Trajectories

#aerocapture #aerobraking #AtmosphericEntry

Spaceflight 🚀 @spaceflight@spacey.space · 3 weeks ago

Content Warning

#Graphene-based nanocomposites can serve as potential #radiation ☢️ shields against ionizing radiation in the gamma and X-ray ranges, boasting a mass attenuation coefficient exceeding 0.2 cm2/g https://www.nature.com/articles/s41598-024-69628-5

#RadiationProtection #HumanSpaceflightHealth

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

Despite guidelines and the past 30 years of research, there has been little progress on fully defining or mitigating the space radiation ☢️ risk to human crew. Schwadron et al. project that Galactic Cosmic Ray fluences will be substantially higher 📈 during the next solar cycles leading to increased background #radiation exposure and, subsequently, as much as a 20% decrease in the allowable safe days in space (outside of #LEO) https://www.nature.com/articles/s41526-018-0043-2

#HumanSpaceflightHealth #RadiationProtection

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

Content Warning

#Radiation ☢️ shielding is a mandatory element in the design of an integrated solution to mitigate the effects of radiation during long #DeepSpace voyages for human exploration. #Kevlar has radiation shielding 🛡️ performances comparable to Polyethylene, reaching a dose rate reduction of 32 ± 2% and a dose equivalent rate reduction of 55 ± 4% (for a shield of 10 g/cm2). https://www.nature.com/articles/s41598-017-01707-2

#HumanSpaceflightHealth #RadiationProtection

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

#NASA #Orion #radiation protection plan 🗒️ "astronauts will position themselves in the central part of the crew module and #create a #shelter using the stowage bags 🛍️ on board. The crew would in some cases need to stay inside for as long as 24 hours ⌛ https://www.nasa.gov/missions/artemis/orion/scientists-and-engineers-evaluate-orion-radiation-protection-plan/

#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

Content Warning

#HumanSpaceflightHealth #RadiationProtection

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

#ESA 📆 18/06/2024 #SolarOrbiter shows the Sun ☀️ raging on https://www.esa.int/Science_Exploration/Space_Science/Solar_Orbiter/Can_t_stop_won_t_stop_Solar_Orbiter_shows_the_Sun_raging_on

#SpaceWeather #SolarStorm

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

Content Warning

#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway

Spaceflight 🚀 @spaceflight@spacey.space · 8 months ago

"How #NASA will protect #astronauts from #SpaceRadiation". Spoiler alert : #luggage 🧳 https://www.youtube.com/watch?v=vpNa4u997xA

#HumanSpaceflightHealth #RadiationProtection #Artemis #LunarGateway

Spaceflight 🚀 @spaceflight@spacey.space · 3 months ago

Content Warning

#Astronauts 👨‍🚀 travelling to #Mars would encounter #radiation ☢️ levels higher than humans have ever experienced, and be exposed to them for much longer.

To protect them, the #spacecraft would either have to be much bulkier, making launches expensive and difficult, or be made of more efficient #shielding 🛡️ materials. https://www.skyatnightmagazine.com/space-missions/how-will-humans-survive-the-journey-to-mars

#RadiationProtection #LunarGateway #Artemis #Moon