Romfart og astronomi - diskusjon, nyheter og annet som opptar deg

[Enceladus]

Joda... det var jo et sted å ha en bolig!   Hva skjer når de begynner med testingen? Må hun evakueres?

 

 

 

Kom også over denne live steamen nå. Kan bli gøy å følge med på i tiden fremover

 

SPADRE.COM STARSHIP CAM views the Spacex Starship, the Launch Pad, Isla Blanca Beach Park which is the closest possible launch viewing area, and the beach at South Padre Island Texas. Enjoy free continuous live streams and recordings of all upcoming launches, and Starship launch schedules and the latest SpaceX Boca Chica news. Launches will begin soon, watch all launches live on SPadre.com Starship Cam. ​Starship Cam is currently zoomed out on a general tour of the launch pad, hopper, and the local beaches. When hopper moves to launch pad, it will zoom in further. Preceding and during launches, it will fully zoom and focus solely on the launch. Marine fog occurs in early spring due to cool water temps and warming air, limiting or obscuring visibility. Check SPadre Youtube channel for frequent video updates from Boca Chica with closeup views of activity.

 

[Enceladus]

[Enceladus]

https://www.youtube.com/watch?v=1kd2nFHAAtU

 

 

Toyota på månen

 

Får satse på at de får god kontroll på hvordan de skal håndtere månestøvet etter hvert da. Det er nasty greier: 

Harmful effects of lunar dust[edit]

Main article: Adverse health effects from lunar dust exposure

A 2005 NASA study listed 20 risks that required further study before humans should commit to a human Mars expedition, and ranked "dust" as the #1 challenge. The report urged study of its mechanical properties, corrosiveness, grittiness, and effect on electrical systems. Most scientists think the only way to answer the questions definitively is by returning samples of Martian soil and rock to Earth well before launching any astronauts.^[10]

Although that report addressed Martian dust, the concerns are equally valid concerning lunar dust. The dust found on the lunar surface could cause harmful effects on any manned outpost technology and crew members:

• Darkening of surfaces, leading to a considerable increase in radiative heat transfer;
• Abrasive nature of the dust particles may rub and wear down surfaces through friction;
• Negative effect on coatings used on gaskets to seal equipment from space, optical lenses, solar panels, and windows as well as wiring;
• Possible damage to an astronaut's lungs, nervous, and cardiovascular systems.

The principles of astronautical hygiene should be used to assess the risks of exposure to lunar dust during exploration on the Moon's surface and thereby determine the most appropriate measures to control exposure. These may include removing the spacesuit in a three-stage airlock, "vacuuming" the suit with a magnet^[11] before removal, and using local exhaust ventilation with a high–efficiency particulate filter to remove dust from the spacecraft's atmosphere.^[12]

The harmful properties of lunar dust are not well known. However, based on studies of dust found on Earth, it is expected that exposure to lunar dust will result in greater risks to health both from direct exposure (acute) and if exposure is over time (chronic). This is because lunar dust is more chemically reactive and has larger surface areas composed of sharper jagged edges than Earth dust.^[13] If the chemical reactive particles are deposited in the lungs, they may cause respiratory disease. Long-term exposure to the dust may cause a more serious respiratory disease similar to silicosis. During lunar exploration, the astronauts' spacesuits will become contaminated with lunar dust. The dust will be released into the atmosphere when the suits are removed. The methods used to mitigate exposure will include providing high air recirculation rates in the airlock, the use of a "Double Shell Spacesuit", the use of dust shields, the use of high–grade magnetic separation, and the use of solar flux to sinter and melt the regolith.^[14][15][16]

https://en.wikipedia.org/wiki/Lunar_soil

Endret 16. mars 2019 av Enceladus

[Enceladus]

Dette er glimrende! Også med værmelding på slutten hehe Skulle gjerne hatt en slik sending hver dag fra BBC eller NRK. I fremtiden kanskje når det er mer aktivitet der ute.

 

[Enceladus]

[Enceladus]

Everyday Astronaut er ganske fornøyelig å høre på

 

Live fra Starship hopper sin første test.

Endret 26. mars 2019 av Enceladus

[Enceladus]

 

Vakkert!

[Enceladus]

 
Vellykket oppskytning av Electron fra New Zealand nå nettopp. Ganske kult!
 

Rocket Lab will be launching their Electron rocket with the Radio Frequency Risk Reduction Deployment Demonstration (R3D2) mission for the Defense Advanced Research Projects Agency (DARPA). It will test a prototype reflective array antenna which is intended to improve radio communications in small spacecraft. The mission will launch from LC-1 on the Mahia Peninsula in New Zealand.

Endret 28. mars 2019 av Enceladus

[Enceladus]

https://www.reddit.com/r/space/comments/b974vu/better_video_of_spacexs_successful_raptor_firing/

 

SpaceX’s Starhopper vehicle test-fires its engine for the first time

https://arstechnica.com/science/2019/04/spacexs-starhopper-vehicle-test-fires-its-engine-for-the-first-time/

Endret 4. april 2019 av Enceladus

[Enceladus]

https://www.reddit.com/r/space/comments/b9uif7/a_video_showing_a_realistic_way_too_make_a_mars/

 

Kanskje ikke helt oppnåelig dette. Men fin demonstrasjonsvideo.

[Enceladus]

Test nr. 2 og den hoppet! 2 dager siden static fire test. Ser ut til at det går fort dette!

Endret 12. april 2019 av Enceladus

[Enceladus]

Israel forsøkte å lande på Månen i dag med en privat sonde. Gikk ikke helt som de hadde håpt men de fikk snappet noen fine bilder blant annet

 

Hittil har bare USA, Russland og Kina landet.

https://www.tu.no/artikler/i-kveld-skal-israelske-beresheet-lande-pa-manen-med-norsk-hjelp/462797

https://arstechnica.com/science/2018/11/nasa-takes-a-tangible-step-back-toward-the-moon-with-commercial-program/

 

Ellers så er det snart SpaceX oppskytning av Falcon Heavy nå øyeblikkelig om været holder og alt går etter planen.

 

Blir gøy!

[Enceladus]

Shit det var sykt kult! Perfekt!

[Enceladus]

[Enceladus]

 

Fantastisk opptak fra Falcon Heavy oppskytningen!

[Snikpellik]

Morsomste launchen jeg har sett på lenge! Virker som de har perfeksjonert landingene nå også. Veldig smud.

[Enceladus]

Kom nettopp over følgende!!

 

 

A new super-Earth may orbit the star next door. Subtle shifts in the motion of the nearby star Proxima Centauri suggest that it may host not one but two alien worlds.

https://www.nationalgeographic.com/science/2019/04/proxima-c-new-super-earth-may-orbit-star-next-door-proxima-centauri/

https://www.reddit.com/r/space/comments/bcmnlq/a_new_superearth_may_orbit_the_star_next_door/

Endret 13. april 2019 av Enceladus

[Simen1]

Kult! Men vi må få lagt en plan for å sende en sverm av mikrosonder dit og utforske området.

[Enceladus]

Kult! Men vi må få lagt en plan for å sende en sverm av mikrosonder dit og utforske området.

 

 

 

Project Dragonfly is the first conceptual design study that assesses the feasibility of a laser-propelled interstellar probe, conducted by the Initiative for Interstellar Studies.^[1][2] Contrary to past unmanned interstellar mission studies such as Project Daedalus and Project Icarus the focus is particularly on a small spacecraft.^[2] The project was founded in 2013 by the Initiative for Interstellar Studies (i4is).^[3] A subsequent design competition was launched in 2014. The objective was to design a spacecraft that is capable of reaching Alpha Centauri within 100 years using existing or near-term technologies and a beam power below 100 GW.^[3] Four teams presented their designs at the final workshop at the British Interplanetary Society in London in July 2015.^[4] The teams consisted of students from Cairo University, Cranfield University, the Skolkovo Institute of Science and Technology, Paul Sabatier University, Technical University of Munich, and University of California, Santa Barbara.^[4][3] The team of the Technical University of Munich won the competition. The design of the University of California, San Diego has subsequently evolved into the design for Breakthrough Starshot of the Breakthrough Initiatives.^[5] Results of the competition have subsequently been published in peer-reviewed journals.^[6][7][8][9] The competition has been accompanied by a Kickstarter campaign that was supported by notable space artists such as David A. Hardy.^[10]

https://en.wikipedia.org/wiki/Project_Dragonfly_(space_study)

 

Og

 

 

Breakthrough Starshot is a research and engineering project by the Breakthrough Initiatives to develop a proof-of-concept fleet of light sail spacecraft named StarChip,^[1] to be capable of making the journey to the Alpha Centauri star system 4.37 light-years away.

A flyby mission has been proposed to Proxima Centauri b, an Earth-sized exoplanet in the habitable zone of its host star, Proxima Centauri, in the Alpha Centauri system.^[2] At a speed between 15% and 20% of the speed of light,^[3][4][5][6] it would take between twenty and thirty years to complete the journey, and approximately four years for a return message from the starship to Earth.

The conceptual principles to enable this interstellar travel project were described in "A Roadmap to Interstellar Flight", by Philip Lubin of UC Santa Barbara.^[7][8] Sending the lightweight spacecraft involves a multi-kilometer phased array of beam-steerable lasers with a combined coherent power output of up to 100 GW.^[9]

https://en.wikipedia.org/wiki/Breakthrough_Starshot

 

Om vi snakker mennesker så kan vi bare glemme for noen hundre år. Bedre å bygge ut solsystemet vårt først og så kan vi sette i gang med noen megaprosjekter når vi har infrastrukturen på plass

Endret 13. april 2019 av Enceladus

[Simen1]

Joda, jeg har sett videoen og lest om begge prosjektene, men mener begge har store svakheter.

 

Både Dragonfly og Starshot-sondene er for små for å kunne måle og se noe fornuftig. Solseilene setter urealistiske krav til laser-array på bakken. Se bare på hvor store sondene her i vårt solsystem må være for å kunne se og oppdage noe fornuftig. Det samme vil gjelde sonder som må fyke forbi Proxima centauri.