Showing posts with label Space X. Show all posts
Showing posts with label Space X. Show all posts

Tuesday, 3 October 2017

Moon Colonies, Telescopes On Volcanoes, And Ancient Collisions


It's all systems go for Elon Musk, who is eager to get people on Mars.
His latest suggestion, the BFR (no prizes for guessing the acronym) can accomodate 100 people and will be used to create a lunar staging post , apparently.
His words appear designed to steal a march on NASA, whose SLS was to be similar - but their hands are tied , certainly in regard to funding and bureaucracy.
The flipside of that coin is pressure from the Trump™  government to accelerate the process of putting people on Mars.
Taking a step back from the politics, I'd say that having a proven player in the field ( Musk has multiple succesful landings and relaunches of the Falcon 9 rockets to his credit, as well as the Space X cargo missions to the ISS) can only be a good thing.
My confusion stems from the 'space race' angle - given that NASA have already announced a joint mission with Roskosmos : I'm pretty sure that this is just muscle-flexing as a demonstration of the prowess of Space X, and the fact that NASA are no longer the only game in town.
After all, it can't possibly be a  new space race, given that Trump™ and Russia are allegedly on the same side...

The downside of this posturing is the lack of any realistic plan for a sustainable colony.
Colonising the moon would surely be the logical first step. Recent discoveries point to the existence of a great deal of water which could sustain life systems and provide fuel for further planet hopping.

Enough of my idle conjecture - the spirit of the Space Treaty of 1967 looms large in this picture
The moon is to all intents and purposes, a dead world-on the surface...which brings us to the mystery of the subterranean lava tubes, and a possible sub-surface body of water.

Artist impression - Alamy stock 'photo'

A fourth gravitational wave has been detected using the two observatories in the USA, and Virgo, an observatory in Italy - giving an image of the 3D shape of the wave, and allowing triangulation for the precise location of the event (the collision of two black holes 1.8 billion years ago).
Personally, I wish I could remember the location of objects I put down five minutes ago.

P.S. As I finish this piece, I learn that the creators of  LIGO have just deservedly received the Nobel prize for physics
  Solar activity affecting Mars     image NASA/GSFC/Univ. of Colorado

Recent solar flare activity caused fluctuations on Mars, and a resultant worry about safety for future explorers.
I wonder whether gravitational ripples contain similar disruptive potential - the one mentioned above involved a combined mass of 53x our own sun, a stupendous amount of energy .
At a distance of 1.8 billion light years, any effect here would probably be negligible - would you notice a tremor on a single sheet of paper on your desk ?


The James Webb Telescope has been pushed back to a spring 2019 launch, which, considering the original proposed date was 2011, is a wee bit late...
Staying on the subject of controversial telescopes, a proposed new telescope has fallen foul of indigenous Hawaiians. The dormant volcano Manua Kea is the proposed site for the telescope which will be capable of seeing 13 billion years into the past.
Despite protests, the telescope is going ahead.

Final image from Rosetta


Wednesday, 28 September 2016

Hell and High Water

© Flickr / SpaceX

Blimey, we've got a unifying theme this week - well , I think so - on Monday last, NASA announced the discovery of water plumes erupting from the surface of Europa
Personally, I wasn't too impressed, as we'd already heard of similar plumes on Enceladus .
Perhaps the most impressive thing is the sheer scale of the water jets - up to 125 miles / 200 km above surface level.
So, pretty darned impressive.
Enough so that we already have an illustration of a SpaceX craft there.
Of course, the elephant in the room is the fatal dose of radiation levels on Europa , courtesy of  Jupiter .
Not much chance of a quick selfie before imminent death...

Likewise, the recently mooted ocean beneath the surface of Pluto may be up to 62 miles / 99 km deep - That's a lot of sea.
The deepest part of our own oceans is a mere 7 miles / 10 km .
On the subject of oceans,  rising sea levels present a very real threat to NASA
Time to find a new launch pad !
Launch pads could be a wise investment, what with the increasing noise about the colonisation of Mars / the Moon / deep space.
The rockets currently being displayed by Elon Musks Space X and Jeff Bezos Blue Origin appear to be engaged in a ' mine is bigger than yours ' routine, with operational capabilities coming a poor second...
Still, healthy competition can only lead to better designs, surely
Speaking of designs (see what I did there?), it appears that ostrich eggs are marked with protein dna strands going back a long time.
I'm not sure what this means in the greater scheme of things , although there's probably a direct link to a Jurassic World - type scenario, where we happily watch dinosaurs with colourful feathers tearing each other apart.


 From Earth, we move inwards towards Mercury where we have been surprised to learn that there is tectonic activity happening there now - and also, it's shrinking - hardly surprising , with an average daytime temperature of 800 degrees farenheit.
Pretty hellish, then - but still active.
I find it somehow comforting knowing that worlds we previously considered geologically dead, are very much active.
We have Mercury, wilting in the sun, and Pluto with its beating heart is far from being the distant ball of windswept ice that my childhood imagination conjured...

Final frames from Rosetta    © ESA

POSTSCRIPT

Rosetta has ended its mission . After an epic 6 billion-mile journey, the Rosetta craft has descended to the surface of Comet 67P . The media is awash with words like crashlanding, and such - but at only 1 mph, it's hardly a spectacular finale.
Personally, I still wonder why it was not simply left to drift in space , perhaps locked into the comets orbit forever ?
After all, surely theft of industrial secrets isn't an issue in space ?
On the other hand, you can never trust those pesky aliens.
Perhaps we should build a Space Wall...



Friday, 8 April 2016

Notes From Anthropocene Man - The Gates of Hell, Falcon 9, and Supermassive Black Holes

STOP PRESS!

As this micro blog goes to press, Space X made history today by launching the Falcon 9 rocket to restock the ISS and then landing the first stage booster with pinpoint accuracy on a barge / 'droneship' in the Atlantic !
History is made !
Meantime, the Dragon craft is docking with the ISS to replenish supplies , and deliver an inflatable extension !

The West Coast  droneship used for the landing
It is a piece of history now, and surely the first step in a new, commercial, space race.

The image below appeared on my FB feed as a timely reminder that we see everything from a human scale, but in the grand scheme of things, we really are miniscule. Further feelings of insignificance came with the announcement of the discovery of a supermassive black hole in an otherwise empty corner of the universe.
The very phrase ' empty corner of the universe' is surely a euphemism...

Endeavour leaves Earth for the final time.          Pic NASA
I find it tempting to laugh at the ludicrous terminology - 'Supermassive', not just ' large' .
'Supermassive' black hole applies to anything over the size of ten billion* suns.
This one is the size of seventeen billion suns, so it's quite big, then.
but not the biggest.
This led me to wonder how they classify black holes , but I confess I'm none the wiser ...apparently the naming convention is ' primordial, stellar and supermassive' .
If you want to ponder, the link is here.

If you just want to see some great images from our solar system , the link is here, with thanks to The Atlantic.com

The giant listening 'ears' of SETI are being redirected.
The latest thinking is that intelligent life, should it exist, is more likely to be found in the habitable, or 'goldilocks' zones of planets in a tight orbit around red dwarf suns.
This information was gathered by the Keppler mission, and given that three quarters of the stars in our own Milky Way are red dwarf stars, that makes them much more practical (i.e. closer to home).
I laughed when I read the phrase 'They are the dim bulbs of the universe'.
This made me sit up, though - why so many red dwarf stars  in our galaxy ?
Are we a dying galaxy ?
Anyway, I hope the revised SETI search produces results - although I prefer another theory which states that our reliance on radio waves as a communication carrier might itself be at fault.

I also hold the belief that advanced alien civilisations might be hiding rather than attempting to communicate.
Who can blame them ?

MEANWHILE , BACK ON  EARTH...

Apparently the new, more energised world of the Large Hadron Collider leaves us open to dangerous possibilities .
Even Pope Francis has spoken out, saying " Scientists risk opening the gates to hell ".
If you ask me (or any old gamer) it sounds like a script for Doom .

In which science unleashes the hordes of hell...    
Either way, there's no denying that with increased power available, the world of the LHC is necessarily getting stranger.
Which makes me wonder -
Is there a global strangeness index ?
Personally, I reckon the world is a lot stranger than it was , but my Googling of the term ' Global Weirdness' only turned up a slew of Climate Change info, which is a frightening reality , but not 'weird '.

IN OTHER NEWS...

NVIDIA are developing supercomputers capable of intricate 'Deep Learn' style Artificial Intelligence.
The aim of this is to develop a system which approaches problems from a variety of angles, much as we humans do.
I only hope the resultant Artificial Intelligence doesn't decide to wipe us out and reboot...which brings us to the title of this post .

Apparently we are living in the Anthropocene era, when our impact on the Earth is unavoidably altering it - and not for the better.
As well as the obvious Climate Change, the search for rare earth elements is a potential eco-disaster.
These rare substances are essential components in smartphones and all things tech,, but do not exist in sufficient quantities to mine , except on the sea - bed.
The caveat is that wholesale destruction of fragile marine ecosystems is necessary to procure enough of them.
Of course, it's possible that many asteroids contain abundant 'rare-Earth' minerals - which, along with todays successful landing by Space-X, tells us that the new 'Space Race' is on - hopefully without the political edge...






* NASA claim that anything over 4 million suns is supermassive