Any truth to this?

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mugs

Lifer
Apr 29, 2003
48,920
46
91
Originally posted by: Fritzo
Yep, that's about right. Antares is an example of what the sun will look like when it runs out of fuel. At that time, all the planets up to Mars will be swallowed by the sun.

Why?
 

preslove

Lifer
Sep 10, 2003
16,754
64
91
Originally posted by: Fritzo
Originally posted by: lokiju
Universe1
Universe2
Universe3
Universe4
Universe5

Got this as an e-mail forward, I wouldn't usually post these but didn't find any info on it being real or not.

Also had the text:

Antares is the 15th brightest star in the sky.

It is more than 1000 light years away.


Yep, that's about right. Antares is an example of what the sun will look like when it runs out of fuel. At that time, all the planets up to Mars will be swallowed by the sun.

Wikipedia says Jupiter :shocked:
 

tweakmm

Lifer
May 28, 2001
18,436
4
0
Originally posted by: AMDZen
Originally posted by: MichaelD
I love graphical demonstrations of the universe. :)

The planets, stars and the "space" b/t us and them are very real. It boggles the mind just how much distance there is b/t it all.

IMO, it's just logical that we can't be alone in this much space. Sure it's possible, but I don't think it's probable.

I wouldn't even say its possible. Depending on what you meant by "alone". I guarentee that there is other life out there, its even possible we will find life on Saturn's Ice Moon (forget which one it is). It just won't be sentient life. Now it is possible that there is no other sentient life in the universe, but even saying that is a huge stretch if you ask me. As for life as a whole, its not even possible that with all the space there isn't any other living organisms out there
I'm of the opinion that we are either "special" or we arn't. If there is other life in the universe, the universe has/is/will be populated with beings beyond ourselves.
 

trmiv

Lifer
Oct 10, 1999
14,670
18
81
I saw these pics a few months ago when I was surfing around, bored at work. When I saw how small the earth was compared to the Sun, I was blown away. I knew the sun was huge, but that really puts it in perspective. But then I click on another pic and see how big Antares is, and I was floored. Makes you feel pretty damn insignificant.
 

Fritzo

Lifer
Jan 3, 2001
41,920
2,161
126
Originally posted by: preslove
Originally posted by: Fritzo
Originally posted by: lokiju
Universe1
Universe2
Universe3
Universe4
Universe5

Got this as an e-mail forward, I wouldn't usually post these but didn't find any info on it being real or not.

Also had the text:

Antares is the 15th brightest star in the sky.

It is more than 1000 light years away.


Yep, that's about right. Antares is an example of what the sun will look like when it runs out of fuel. At that time, all the planets up to Mars will be swallowed by the sun.

Wikipedia says Jupiter :shocked:

The last I heard in an astronomy class I took (10 or so years ago) was that Jupiter would be stripped of it's atmostphere, leaving it's core.
 

Horus

Platinum Member
Dec 27, 2003
2,838
1
0
What I get from that? In the grand scheme of things...

FVCK WE'RE SMALL!
 

Spacehead

Lifer
Jun 2, 2002
13,067
9,858
136
Originally posted by: lokiju
Universe1
Universe2
Universe3
Universe4
Universe5

Got this as an e-mail forward, I wouldn't usually post these but didn't find any info on it being real or not.

Also had the text:

Antares is the 15th brightest star in the sky.

It is more than 1000 light years away.



Hmm... i always thought Mars & Earth were closer in size. Guess not.

Here's a list of the brightest stars
Antares is the 15th brightest named stats but it's only 425ly away. Compare that with Deneb(18th) at 1630ly... they're nearly the same brightness, meaning Deneb is huge.

The Sun is an average sized star(maybe a bit smaller than average).
 

bunnyfubbles

Lifer
Sep 3, 2001
12,248
3
0
Originally posted by: mugs
Originally posted by: Fritzo
Yep, that's about right. Antares is an example of what the sun will look like when it runs out of fuel. At that time, all the planets up to Mars will be swallowed by the sun.

Why?

Because it will have run out of Hydrogen to burn, and will start to burn its Helium. Think of Stars as sustained explosions, held back by gravity. The more powerful the explosion, the more the star will be able to overcome its own gravity. When it starts its Helium phase burn the star expands because it is exploding with more violence and is less stable.
 

Thraxen

Diamond Member
Dec 3, 2001
4,683
1
81
Originally posted by: bunnyfubbles
Because it will have run out of Hydrogen to burn, and will start to burn its Helium. Think of Stars as sustained explosions, held back by gravity. The more powerful the explosion, the more the star will be able to overcome its own gravity. When it starts its Helium phase burn the star expands because it is exploding with more violence and is less stable.

Interesting... why doesn't it burn the helium now?
 

lokiju

Lifer
May 29, 2003
18,526
5
0
Originally posted by: bunnyfubbles
Originally posted by: mugs
Originally posted by: Fritzo
Yep, that's about right. Antares is an example of what the sun will look like when it runs out of fuel. At that time, all the planets up to Mars will be swallowed by the sun.

Why?

Because it will have run out of Hydrogen to burn, and will start to burn its Helium. Think of Stars as sustained explosions, held back by gravity. The more powerful the explosion, the more the star will be able to overcome its own gravity. When it starts its Helium phase burn the star expands because it is exploding with more violence and is less stable.

Interesting...

Would be amazing to see actual footage of this, but with it being so far away that it couldn't possibly do anything to Earth.
 

Deeko

Lifer
Jun 16, 2000
30,213
12
81
I wish we had a black hole somewhere on earth that'd be so cool. Black holes are awesome.
 

middlehead

Diamond Member
Jul 11, 2004
4,573
2
81
Originally posted by: nakedfrog
Originally posted by: Thraxen
The scope of the universe simply boggles my mind. Even as big as Antares is, it's only a tiny part of a single galaxy... and there are billions of galaxies.
:music:
Just remember that you're standing on a planet that's evolving
And revolving at nine hundred miles an hour,
That's orbiting at nineteen miles a second, so it's reckoned,
A sun that is the source of all our power.
The sun and you and me and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at forty thousand miles an hour,
Of the galaxy we call the 'Milky Way'.
Our galaxy itself contains a hundred billion stars.
It's a hundred thousand light years side to side.
It bulges in the middle, sixteen thousand light years thick,
But out by us, it's just three thousand light years wide.
We're thirty thousand light years from galactic central point.
We go 'round every two hundred million years,
And our galaxy is only one of millions of billions
In this amazing and expanding universe.
The universe itself keeps on expanding and expanding
In all of the directions it can whizz
As fast as it can go, at the speed of light, you know,
Twelve million miles a minute, and that's the fastest speed there is.
So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth,
And pray that there's intelligent life somewhere up in space,
'Cause there's ah heck all down here on Earth.
:music:
I was just coming to post that :thumbsup:
 

Fritzo

Lifer
Jan 3, 2001
41,920
2,161
126
Originally posted by: NanoStuff
Originally posted by: Deeko
I wish we had a black hole somewhere on earth that'd be so cool. Black holes are awesome.

Be careful what you wish for.

Black holes suck.



BWAAAAAHAHAHAAHAHAHAHAHAAHAA!!!!!! I KILL ME!!!!