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Mark Ruhland

Space Exploration  - 
 
I found this article to be intriguing and wanted to share it.
Long stays in space have a major hitch. Medical studies on the effects of microgravity on astronauts after many months in low-Earth orbit (LEO) can’t get around one hard truth --- humans aren’t cut out for life without gravity. Thus, artificial gravity habitats are now being discussed as a crucial [...]
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Astrid Lakota's profile photoMike Aben's profile photoирина филимонова's profile photoGregor Martin's profile photo
10 comments
 
+Graham Boreham It's just using rotation to generate artificial gravity.  No sophisticated science happening here.  The challenge is in the engineering.
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Zenith Press

Space Exploration  - 
 
The JWST infrared telescope is going to change how we think of space

Source - New Space Frontiers

http://zenithpress.tumblr.com/post/115125873135/the-universe-through-an-infrared-telescope
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anaydenov's profile photoDerek Åkerman's profile photoJayna Leone's profile photoNorikazu Bryant's profile photo
3 comments
 
Looking forward to it
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Ciro Villa
moderator

Space Exploration  - 
 
 
NASA Astronaut Scott Kelly​ is 3 days into his yearlong mission to the International Space Station. Perspective for a lunar orbit mission and +NASA's journey to Mars...
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Mark Ruhland's profile photo
2 comments
 
And he's already whining... Just like his brother...hahaha
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Alexander Biebricher

Space Exploration  - 
 
 
In case you missed it: #space in +TIME

I have to admit that I sometimes think the ISS is like the Big Brother House floating in space with rather more sophisticated tenants.

http://ow.ly/KVWVN

+NASA
+International Space Station

#astronaut #science #ScottKelly #YearInSpace
See a preview of TIME's unprecedented new series
1 comment on original post
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blind lemon's profile photoPoll Smith's profile photoV. Buckster's profile photo
 
Just 363 days to go.....oh, yeah, the Playboy's are in the box marked potato chips!
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Mark Ruhland

Space Exploration  - 
 
What kind of engineering would be needed to "create" gravity that would envelop a space ship??? Currently, on the ISS and; in the past; the shuttles had to deal with zero g. Is it even possible, using technology that we have today to create gravity on a large scale? How would it work? I know Newton's laws have to come in here, somewhere, I just don't understand quite how.
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MegaZone's profile photoGail Shaw's profile photo
47 comments
 
+sanjay sinha You can't make a suit that uses magnetism to simulate gravity. Gravity acts on all matter, magnetism only acts on some materials. You could get someone to stick to a surface, but it wouldn't feel like gravity.

You could use magnetic boots/suit to 'stand' on the ceiling here on earth, but you'd still feel gravity pulling on you in its normal direction.

Linear acceleration is feasible. You can't reach the speed of light (see Relativity). You could get ever closer to it, but relativistic effects wouldn't even apply on shorter journeys (on longer ones they would, but we're a long, long way from interstellar trips). The fuel requirements are the problem.

Rotation is feasible, we just don't have the engineering or budget at the moment for ships/stations that are large enough to have a decent spin
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With just 1/3rd of #Earth's gravity, living on #Mars can be an issue.

http://goo.gl/MFWNEZ
We've sent a lot of robots to Mars. Someday, humans too will set foot on the red planet. Here are the most interesting things we know about Mars so far.
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M. Irshad Iqbal Rao's profile photovee rush's profile photo
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Jenny Winder

Space Exploration  - 
 
Watch out for the flying saucer!
NASA is inviting the public to watch the next test flight of its innovative flying saucer-shaped vehicle designed to land heavy payloads on Mars.
#FlyingSaucer #LDSD #Mars
Read the full article at: http://sen.com/news/watch-out-for-the-flying-saucer
NASA is inviting the public to watch a key test of their new flying saucer-shaped vehicle designed to land heavy payloads on Mars.
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Mark Ruhland's profile photoMark Rindfleisch's profile photorandoom3's profile photoDatta Kirde.'s profile photo
2 comments
 
"Shields, Captain"???
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Mehwish Moiz

Space Exploration  - 
 
 
Question of the Day! 
Is our solar system moving or traveling within our Galaxy? Is our Galaxy traveling or moving in the Universe? If so, how fast? 

Answer!
Our solar system, containing the Sun and the planets, is about 2/3 of the way out from the center of the Galaxy. The solar system travels in an orbit around the center of the Galaxy, at a velocity (i.e. speed) of a few hundred kilometers per second, completing one orbit around the center of the Milky Way about every 230 million years. In addition, the solar system is moving at about 20 kilometers per second with respect to the nearby stars. There is also a small amount of motion with respect to the plane of the Galaxy. Currently, the solar system is heading outwards but the gravitational pull of the stars in the galactic plane will eventually cause it to stop and then move back towards the galactic plane. 

And yes, our whole Galaxy is also traveling through space. Within the local group of galaxies, the Milky Way's velocity is several hundred kilometers per second. 
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Cassiano Ricardo dos Santos's profile photoЮрий Гришаев's profile photoAn - Chung Lin's profile photoErik Karlsson's profile photo
3 comments
 
No,The universe is expanding but not the galaxies.
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Vipul Sharma

Space Exploration  - 
 
 
PSLV-C27/IRNSS-1D Launch on 28th March 2015

The launch of India's fourth Navigation Satellite IRNSS-1D onboard PSLV-C27 is scheduled at 17:19 hrs (IST) on Saturday, March 28, 2015 from Satish Dhawan Space Centre, Sriharikota.

#ISRO #Satellite #PSLVC27 #IRNSS1D #Sriharikota #India
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Tony pongo Jibril's profile photoMohd Arif's profile photoAlexandre Alves's profile photoAnuhya Kottapalli's profile photo
2 comments
 
Indias sky roaring , listen the word .Congratulation I SO. 
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Charles Black

Space Exploration  - 
 
Get set for an Easter weekend total lunar eclipse http://sen.com/news/get-set-for-an-easter-weekend-total-lunar-eclipse   #lunareclipse   
A guide to observing and photographing the April 4 2015 total lunar eclipse.
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Mark Ruhland's profile photo
 
Didn't we just have a lunar eclipse a few weeks ago??? Is it that time of the month already??? Sorry, it was the blood red that made me think that. Sorry, ladies.
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Douglas Loscalzo

Space Exploration  - 
 
Turns out, we're the aliens.

The linked article contains info on NASA's space exploration efforts, where they're attempting to pioneer new atmospheric entry breaking systems.

Their aim is to develop new technologies that will allow them to carry heavier payloads to the Martian surface - minus the hard landing. This is all leading into NASA's proposed manned mission to Mars in the future.
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Mark Ruhland's profile photoJohn Spade's profile photoAkshobhya Jamadagni's profile photo
5 comments
 
It's the Lost In Space ship OMG!!!!!
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Thorfinn Hrolfsson

Space Exploration  - 
 
Limits and Signatures of Relativistic Spaceflight
Ulvi Yurtsever & and Steven Wilkinson
Raytheon Company, El Segundo, CA

While special relativity imposes an absolute speed limit at the speed of light, our Universe is not empty Minkowski spacetime. The constituents that fill the in terstellar/intergalactic vacuum, including the cosmic microwave background photons, impose a lower speed limit on any object travelling
at relativistic velocities. Scattering of cosmic microwave phtotons from an ultra-relativistic object may create radiation with a characteristic signature allowing the detection of such objects at large distances.
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Brian Straight's profile photo
 
Very interesting article. Thanks for posting the link!
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Mark Ruhland

Space Exploration  - 
 
"Imagine that! It never occurred to me that space was the thing that was moving".. (Quote from Star Trek). Here is my question: If space is the thing that is moving, why is it the Milky Way and Andromeda galaxies can not simply go under or over one another. Why is it that in the next billion or so yrs, the two will collide?

If space moves, than that would mean that there are "currents" in space. Why can't a current go over another one, like air does? There are different levels of clouds, at various levels, each moving in their own direction, separate from each other, but also together, to form the cloud formations we see.

Why can't space be the same way? Or is it? Where there are currents in space guiding the various solar systems and galaxies around.

I'm probably asking questions I should know the answers to, but these eludes me. Space is a hobby of mine, but I'm no expert, by any stretch of the imagination.
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Herbert Miller's profile photoMark Ruhland's profile photo
18 comments
 
+Herbert Miller That was an intriguing example. Easily followed. Thanx.
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Mapping the history of an ancient Martian lake
New analysis of an ancient Martian lake system has found two separate periods of water activity that filled the Jezero Crater nearly four billion years ago. 
#SearchForLife #WaterOnMars #Mars
Read the full article at: http://sen.com/news/mapping-the-history-of-an-ancient-martian-lake
New analysis of an ancient Martian lake system has found two separate periods of water activity that filled the Jezero Crater nearly 4 billion years ago.
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J A Jones-Ford's profile photo
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Glenn Walsh

Space Exploration  - 
 
Public: Help Name #Pluto & Charon Surface Features, New U.S. Rocket

On July 14, 2015, NASA’s New Horizons spacecraft will fly past Pluto, snapping the first-ever high resolution pictures of that small, distant world and its largest moon, Charon. As the surface features of these two worlds are revealed – craters, rifts, valleys – they’ll need names. You can help decide what labels will go on the images and maps coming from the flyby.

Eagle? Freedom? GalaxyOne? United Launch Alliance wants public input in the naming of a next-generation launcher designed to replace the historic Atlas and Delta rocket lines in the 2020s.

More: http://spacewatchtower.blogspot.com/2015/03/public-help-name-pluto-charon-surface.html
(Image Source: NASA)              Help Pick Name of Surface Features of Pluto & Charon On July 14, 2015, NASA’s New Horizons spacecraft will fly past Pluto, snapping the first-ever high resolution pictures of that small, dist...
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Manav Shangari

Space Exploration  - 
 
What do you think? Would our end be 'this' terrible there? #space   #universe  
If you were to skydive into the planet Jupiter, imagine the horror when you'll find no solid surface to land on, ever! To make things worse, the 2.5X gravitational force will make you fall way harder and way faster than normal.
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Christopher Lenhart's profile photoAlessio Poletti's profile photoChiara Glen's profile photoRaquel Fruit's profile photo
12 comments
 
Will read at home. 
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Shashank Bhardwaj

Space Exploration  - 
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Mark Russell's profile photoJoasia Kozłowska's profile photo
8 comments
 
+Shashank Bhardwaj yeah I guess something big enough to rota would need to be big, to over come that you would need a easier way to make gravity in space 
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glad to find you all here...in plain language how do i align my scope with the Polaris . the more i read n watch more mixed i get
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Mat Helm

Space Exploration  - 
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павел паначёв's profile photoDillinger Lounce's profile photoAn - Chung Lin's profile photo
 
Пора избавиться от реактивной тяги она не тянет те задачи которые необходимо на данный момент .Читайте физику там есть другая возможность
 ·  Translate
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Shashank Bhardwaj

Space Exploration  - 
 
 
The Rise & Rise of #SpaceX :

http://goo.gl/Kjujxv
The goals of SpaceX are pretty straightforward, if not ambitious: To make spaceflight routine and affordable, and to make humans a multi-planet species.
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Samantha Pearl's profile photoTomáš “Tomo” Martinove's profile photo
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