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HellBlazer
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Joined: Sat Aug 10, 2002 6:48 am
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Location: Canada
PostPosted: Thu Aug 21, 2014 3:49 pm 
 

^ Huh, I wouldn't have expected that. Pretty amazing.

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adroship
Mallcore Kid

Joined: Sun Jan 26, 2014 5:46 pm
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Location: United States
PostPosted: Tue Aug 26, 2014 2:20 pm 
 

Not sure if anyone has mentioned this yet, but it is one of my favorite fun astrophysics facts, especially because it is so damn metal:

If the sun were a neutron star, the magnetic field on Earth would be so intense that it would strip the iron from our bloodstreams.

Source: An astronomy professor told me. That's the best I can do, sorry.

Also, I know someone mentioned James Webb Space Telescope, but also exciting is a satellite that was launched 8 years ago. New Horizons is going to flyby Pluto next year in July, so we'll have pictures of Pluto's surface!

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inhumanist
Metal freak

Joined: Fri Jan 14, 2011 5:09 pm
Posts: 5635
PostPosted: Tue Aug 26, 2014 3:28 pm 
 

adroship wrote:
If the sun were a neutron star, the magnetic field on Earth would be so intense that it would strip the iron from our bloodstreams.

:metal: Demilich should have made a song about it.

Spoiler: show
Image
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adroship
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Joined: Sun Jan 26, 2014 5:46 pm
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PostPosted: Tue Aug 26, 2014 6:37 pm 
 

inhumanist wrote:
adroship wrote:
If the sun were a neutron star, the magnetic field on Earth would be so intense that it would strip the iron from our bloodstreams.

:metal: Demilich should have made a song about it.


"The Planet That Wandered Too Close to a Star And All Its People Died (Because They Had Metal Ripped Out of Their Blood)" does have a nice ring to it.

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oneyoudontknow
Cum insantientibus furere necesse est.

Joined: Sun May 21, 2006 6:25 pm
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Location: Germany
PostPosted: Sat Sep 13, 2014 8:47 am 
 

two selfies by Curiosity in comparison:
http://www.nasa.gov/mission_pages/msl/m ... 16238.html
Sol 84 (Oct. 31, 2012)
Spoiler: show
Image


http://www.nasa.gov/jpl/msl/pia18390/
613th Martian day, or sol, of Curiosity's work on Mars (April 27, 2014)
Spoiler: show
Image


Dusty place over there.
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The_Apex_of_Collapse
Metalhead

Joined: Wed Jul 22, 2009 11:29 pm
Posts: 1539
Location: Canada
PostPosted: Sun Sep 14, 2014 11:58 am 
 

Nice pictures. Those high res images really make it seem hospitable like you could actually be there, though the truth of that is obvious. Its almost earth like in a subtle, yet eerie way.
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hey
Metalhead

Joined: Thu Feb 07, 2008 6:41 pm
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Location: United States of America
PostPosted: Tue Sep 16, 2014 5:23 pm 
 

Ars Technica just recently had an interesting article which covered a repair mission that had been done on Salyut 7, a Soviet space station, that you guys might enjoy reading.

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Earthcubed
The Great Fearmonger

Joined: Sun Nov 07, 2004 3:44 am
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PostPosted: Thu Oct 02, 2014 11:46 pm 
 

http://online.wsj.com/articles/u-s-take ... 1412119610

Not an especially spacy article, but the U.S. government essentially just admitted it is refraining from disassembling nukes it previously agreed to take down. The reason? They want to complete a high-level "evaluation of their use in planetary defense against earthbound asteroids."

I suppose nukes are the only ready-to-use impact mitigation devices we have right now.
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inhumanist
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PostPosted: Fri Oct 03, 2014 6:04 am 
 

Right. "We're just keeping those nukes to defend the earth from asteroids you guys!"

Wouldn't the time needed to prepare a spacecraft aimed at an incoming asteroid probably be enough to also arm a nuke anyways? I mean, if that asteroid is close enough to be hit by a regular missile it's probably too late isn't it? I feel like the goal should be to change its course, not blow it up and create a bunch of smaller asteroids headed our way.
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Earthcubed
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PostPosted: Fri Oct 03, 2014 9:01 am 
 

I don't think you could actually blow up an asteroid from the outside, the goal would be to nudge it off course by setting nukes off in proximity. Depending on the size it might require a lot; most nuclear weapons are in the sub-megaton range. The 10+ megaton bombs from the early cold war have already all been dismantled.


But yeah, I suspect this has as much to do with planetary defense as it does making sure DOE technicians still have a reason for employment.
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iamntbatman
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PostPosted: Fri Oct 03, 2014 9:05 am 
 

Actually what you really need to do is get the best goddamn deep-core driller the world has ever seen, then land on the asteroid, drill a hole, then drop a nuke down it to split the asteroid along its fault line so that the two halves pass by Earth without issue.
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Earthcubed
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PostPosted: Fri Oct 03, 2014 9:06 am 
 

Such a terrible movie :lol:
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iamntbatman wrote:
On Friday I passed an important milestone in my teaching career: a student shat himself

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I would happily have 'if you are a false, don't entry' tattooed across my arse.

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inhumanist
Metal freak

Joined: Fri Jan 14, 2011 5:09 pm
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PostPosted: Thu Nov 13, 2014 11:17 am 
 

Rosetta pics:
http://imgur.com/a/NoPlA?gallery

XKCD rendition of how it went down:
http://xkcd1446.org/#0
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Under_Starmere wrote:
iHumanism: Philosophy phoned in.
Metantoine wrote:
If Summoning is the sugar of fantasy metal, is Manowar the bacon?

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Grave_Wyrm
Metal Sloth

Joined: Sun Mar 04, 2012 5:55 pm
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Location: Fml States of America
PostPosted: Thu Nov 13, 2014 3:49 pm 
 

Really rad imgur series. Thanks for that.

Is it just me or is the XKCD link not producing anyth- .. oh .. never used a flip book on the internet before. :P
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oneyoudontknow
Cum insantientibus furere necesse est.

Joined: Sun May 21, 2006 6:25 pm
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Location: Germany
PostPosted: Thu Nov 13, 2014 4:33 pm 
 

Watched it while on work.
This is exactly how it felt yesterday:
http://xkcd1446.org/#127
watching the drawings of xkcd, had been a lot of fun yesterday ...
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Earthcubed
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PostPosted: Fri Jan 16, 2015 7:45 pm 
 

http://news.discovery.com/space/astrono ... 150116.htm


This is potentially huge. Some news sources are reporting these two planets would have to be larger than Earth for this to work. :)
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RedMisanthrope
Poet Laureate of the Old Ones

Joined: Sat May 19, 2007 1:53 pm
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PostPosted: Sat Jan 17, 2015 9:05 pm 
 

Planet X confirmed :tinfoil: Annunaki imminent
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oneyoudontknow
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Joined: Sun May 21, 2006 6:25 pm
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Location: Germany
PostPosted: Thu Feb 26, 2015 10:28 am 
 

oneyoudontknow wrote:
self-image of Curiosity:
http://www.nasa.gov/mission_pages/msl/m ... 16238.html
pretty cool.

edit:
no, idea where heise got this one from, but it is definitely better:
http://www.heise.de/imgs/18/9/4/1/9/8/1 ... 0df5e.jpeg

edit 2:
a nasa picture with a better resolution:
Spoiler: show
Image

There is a new one out today:
Spoiler: show
Image

Interesting to see the difference over time. Dusty place that planet Mars.
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Earthcubed
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PostPosted: Thu Mar 12, 2015 1:34 pm 
 

Huge news from NASA's Cassini probe today. They have strong evidence of a warm(!)-water ocean underneath the Saturnian moon Enceladus. We've known about the ocean for a decade or so, we just didn't have evidence of it being anything other than frigidly fucking cold.


http://solarsystem.nasa.gov/news/displa ... s_ID=48922
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On Friday I passed an important milestone in my teaching career: a student shat himself

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HellBlazer
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Joined: Sat Aug 10, 2002 6:48 am
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PostPosted: Fri Mar 13, 2015 1:11 am 
 

Earthcubed wrote:
Huge news from NASA's Cassini probe today. They have strong evidence of a warm(!)-water ocean underneath the Saturnian moon Enceladus. We've known about the ocean for a decade or so, we just didn't have evidence of it being anything other than frigidly fucking cold.


http://solarsystem.nasa.gov/news/displa ... s_ID=48922


That's pretty awesome. Though, to be accurate, it's not the whole ocean that would be warm water, but this is indirect evidence for hydrothermal vents, which would indeed warm up the water around them. This is even more interesting because vents like this exist here on Earth on the ocean floor, and they support life for certain extremophile organisms in the area around them. Certain theories even suggest this is where life originated on Earth.

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Napero
GedankenPanzer

Joined: Sun Jan 02, 2005 4:16 pm
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Location: Finland
PostPosted: Sat Mar 14, 2015 6:42 am 
 

And if there's no life there, we have suitable organisms to use to seed the place with life. I'd be surprised if the chemistry there was too different for some extremophiles to survive.
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Grave_Wyrm
Metal Sloth

Joined: Sun Mar 04, 2012 5:55 pm
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Location: Fml States of America
PostPosted: Sun Apr 12, 2015 2:32 am 
 

"Glorious" solar time lapse
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Brainded Binky
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Joined: Thu Oct 17, 2013 5:51 pm
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PostPosted: Tue Apr 14, 2015 1:00 pm 
 

I took an astronomy class a year ago at my college, and my professor said that there's a probe that was launched in 2006 or so. Said probe should reach Pluto by summer of 2015 and take pictures. I can honestly say I'm kinda hyped!

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HellBlazer
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PostPosted: Tue Apr 14, 2015 1:45 pm 
 

Brainded Binky wrote:
I took an astronomy class a year ago at my college, and my professor said that there's a probe that was launched in 2006 or so. Said probe should reach Pluto by summer of 2015 and take pictures. I can honestly say I'm kinda hyped!


Yes, the New Horizons probe. It took a long time getting there, but now its closest approach to Pluto is this July. It will then continue on its way towards the outer solar system and try a flyby of a Kuiper Belt object.

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Brainded Binky
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Joined: Thu Oct 17, 2013 5:51 pm
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PostPosted: Wed Apr 15, 2015 12:21 am 
 

HellBlazer wrote:
Brainded Binky wrote:
I took an astronomy class a year ago at my college, and my professor said that there's a probe that was launched in 2006 or so. Said probe should reach Pluto by summer of 2015 and take pictures. I can honestly say I'm kinda hyped!


Yes, the New Horizons probe. It took a long time getting there, but now its closest approach to Pluto is this July. It will then continue on its way towards to outer solar system and try a flyby of a Kuiper Belt object.


I'm looking forward to seeing images of some part of the Kuiper Belt! I might be an old man by the time that happens, but it'll be something to look forward to.

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Odin AllFather
Metal newbie

Joined: Sat Apr 11, 2015 4:35 am
Posts: 34
Location: Canada
PostPosted: Fri Apr 17, 2015 3:57 pm 
 

http://www.sciencedaily.com/releases/2015/04/150416135652.htm
Image

An enhanced color image of dwarf planet Ceres located in the asteroid belt between Mars and Jupiter.

From the different colors we can see that the surface is made up of a wide range of different properties (it is believed that the surface used to be much different and more active - long ago). It has also been discovered that the surface still contains roughly 25% water.

Interesting note, so far 10 “bright spots” have been found - two of which are very bright and visible in other images of Ceres (northern hemisphere). The nature of these bright spots remain unknown.

I would like to hear some random theories as to what people think they could be.

One obvious theory could be that sunlight is reflecting from lakes of ice in the craters – I would like to believe something crazier though.

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HellBlazer
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PostPosted: Fri Apr 17, 2015 5:42 pm 
 

A cool animation of Ceres that shows off some of these bright spots. It's interesting that the brightest pair remain very bright even as they rotate into the dark side. No idea what they are though.

Image

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Odin AllFather
Metal newbie

Joined: Sat Apr 11, 2015 4:35 am
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PostPosted: Fri Apr 17, 2015 6:33 pm 
 

Spoiler: show
Image

enhanced color image - close up on the Ceres bright spots

source > http://www.jpl.nasa.gov/spaceimages/details.php?id=pia19063


Last edited by Metantoine on Fri Apr 17, 2015 6:38 pm, edited 2 times in total.
Man, use spoilers...

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HellBlazer
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PostPosted: Wed Apr 29, 2015 5:27 pm 
 

Pluto and Charon, about 90 days away from New Horizons' closest approach. The probe now gets a better resolution of Pluto than Hubble. :)

Image

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Brainded Binky
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PostPosted: Wed Apr 29, 2015 8:28 pm 
 

I can't wait till New Horizons gets closer to Pluto! Humanity will have its first real look at the ex-planet!

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Saetiah
Mallcore Kid

Joined: Tue Apr 28, 2015 9:05 pm
Posts: 15
PostPosted: Wed Apr 29, 2015 9:00 pm 
 

I always loved space. It intrigues me deeply. I often wonder about live in another planets and whether they are like humans. When I still watched TV, documentaries about the universe were amongst my favourites. When I was younger I wanted to be an astronomer and my dad would say proudly how I would end up being one, which sadly didn't happen. Being an astronomer in my country really isn't viable. I admire doods like Carl Sagan and Neil deGrasse Tyson. I would've liked to be an astronaut too but my country doesn't have a space programme.

Image
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Morrigan
Crone of War

Joined: Sat Aug 10, 2002 7:27 am
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PostPosted: Thu Apr 30, 2015 2:59 pm 
 

Cosmos <3

In other infuriating news, NASA might very well get its science budget completely gutted (thanks to... you guessed it, science-and-reality-and-global-warming-denying House GOP):
http://www.slate.com/blogs/bad_astronom ... ences.html
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Brainded Binky
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PostPosted: Fri May 01, 2015 12:57 pm 
 

On a more positive note, the Messenger probe is set to crash on Mercury today.

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Reid
Metal newbie

Joined: Mon Sep 08, 2008 8:33 pm
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Location: United States
PostPosted: Fri May 01, 2015 2:02 pm 
 

Morrigan wrote:

In other infuriating news, NASA might very well get its science budget completely gutted (thanks to... you guessed it, science-and-reality-and-global-warming-denying House GOP):
http://www.slate.com/blogs/bad_astronom ... ences.html


As a geologist, this really rustles my jimmies. Not only for the fact that the move to cut Earth sciences is so clearly partisan, but the committee's insinuation that Earth science and space exploration are mutually exclusive flies in the face of all we've learned from Earth analogues of extra-terrestrial environments (very useful for development of asteroid and Mars rover tech), as well as mineral data, meteorite analysis, et cetera.

Ugh.

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oneyoudontknow
Cum insantientibus furere necesse est.

Joined: Sun May 21, 2006 6:25 pm
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PostPosted: Fri May 01, 2015 6:02 pm 
 

Brainded Binky wrote:
On a more positive note, the Messenger probe is set to crash on Mercury today.

Looks pretty abandoned on Mercury. Lonely place to live.

This would the project's website, which also has the final images of the probe.
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inhumanist
Metal freak

Joined: Fri Jan 14, 2011 5:09 pm
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PostPosted: Sat May 02, 2015 5:19 am 
 

Star Trek confirmed. First Contact should be only about 10 years away now, surely WW3 will have happened by then (Earthcubed can tell you all about that) so it'll all go as predicted, except when Picard shows up we'll stump him by being all ready to take off with our USS Enterprise -I, built from nuclear waste barrels and shot down autonomous killer drones.
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Under_Starmere wrote:
iHumanism: Philosophy phoned in.
Metantoine wrote:
If Summoning is the sugar of fantasy metal, is Manowar the bacon?

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aaronmb666
Veteran

Joined: Mon Jan 03, 2005 3:37 am
Posts: 2670
PostPosted: Sat May 02, 2015 11:19 am 
 

Im thinking of getting a telescope, but dont really know what to get. I was thinking spending around $50. Im wanting one to take outside at night and look at the sky, maybe even go to a more rural area, where its even darker. Any ideas/recommendations?

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mogila
Metal newbie

Joined: Wed Dec 07, 2011 9:30 am
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Location: Australia
PostPosted: Sun May 03, 2015 4:16 am 
 

a question about alien life, do you think evolution would occur with alien life forms as well, or do you think it's something that's quite rare in the universe? I certainly think we would see evolution occurring on alien planets as well, I don't think Earth would be unique in this aspect.

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Earthcubed
The Great Fearmonger

Joined: Sun Nov 07, 2004 3:44 am
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Location: eccaira nare epë Anar
PostPosted: Sun May 03, 2015 10:31 am 
 

HellBlazer wrote:
A cool animation of Ceres that shows off some of these bright spots. It's interesting that the brightest pair remain very bright even as they rotate into the dark side. No idea what they are though.


I would assume they're something that warms up quickly but cools down slowly? I'm not even sure that makes sense.
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TheRagingChaos
Mallcore Kid

Joined: Mon Jun 09, 2014 1:59 am
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PostPosted: Sun May 03, 2015 11:04 am 
 

aaronmb666 wrote:
Im thinking of getting a telescope, but dont really know what to get. I was thinking spending around $50. Im wanting one to take outside at night and look at the sky, maybe even go to a more rural area, where its even darker. Any ideas/recommendations?


Hey

Don't want to rain on your parade, but for 50$, you won't get anything more than a cheap toy. If it's only for observation (no astrophotography), you should get a good dobson-mount newton. You could get something used for a couple hundred bucks. I know it's over your budget though...

Remember, the best telescope is the one that's gonna get used. If you buy a toy, the fun will leave really fast.

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