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Jan16-12 Greg Bernhardt
aandc, library, reference Sticky Thread Pinned: A&C reference library ( 1 2 3 ... Last)
Use this topic to post links to helpful/informative websites about astronomy & cosmology.
Jul3-14 06:29 PM
marcus
140 113,666
Hellfire requested that I post a list of classic papers that one could use for reference when trying to understand the...
Nov28-12 01:12 AM
stargazer3
17 45,078
A thread on this forum Plans for Asteroid Mining has more than 9000 views. From that I conclude that belief that...
T 04:51 PM
davenn
3 358
Most people come up with their own internal reasoning for things like this that have not been explained. I was...
T 03:51 PM
Drakkith
4 86
Ancient Milky Way star may preserve shrapnel from a superstar's violent explosion by Ken Croswell, author of The...
T 01:36 PM
CygnusX-1
0 130
Folks, I'm struggling to write a monograph that details the potential of a rotating supernova directing a gamma ray...
Aug19-14 02:26 PM
TimeHorse
2 241
Hello, I was just curious why do all of the planets in the solar system orbit in approximately the same plane? Why...
Aug19-14 09:56 AM
Jimster41
25 30,949
Hey! I'm new here and I just wanted to ask a question and maybe I'll come back here once I have started college in a...
Aug18-14 08:59 PM
Drakkith
8 526
http://i.imgur.com/w9PGgXi.jpg LEDA 074886, also known as PGC 74886, is a dwarf galaxy with a rare rectangular shape,...
Aug18-14 08:03 PM
soulmartyr
1 242
Hi, quick question for you guys. I was having a discussion the other day with a friend of mine, about whether it was...
Aug18-14 05:02 PM
SatSat
2 287
Or is it too soon?
Aug18-14 12:07 PM
soulmartyr
3 321
I'm rather new here so please forgive me if this is answered somewhere else, but I was unable to find it while...
Aug17-14 08:54 PM
Creator
1 280
i had this science project in school on black holes and i came an article stating we live in a black hole theory link...
Aug16-14 09:57 AM
mfb
6 687
Or is earth the only world in the inner solar system with caves.
Aug15-14 11:21 PM
AlephZero
7 585
You must have heard the recent news that the first woman ever, Maryam Mirzakhani, just won the Fields Medal. ...
Aug15-14 05:33 AM
Simon Bridge
1 451
What could we learn if we found the second moment of mass for a taurus and use E = mc2 to find second moment of energy?
Aug15-14 04:28 AM
Simon Bridge
1 346
I've researched multiple histories of Greek astronomy, and have not found a satisfactory answer to this. When...
Aug14-14 02:56 PM
Chronos
3 422
Comets have what is called an "induced magnetosphere". Has anyone been able to document polarity in any of the...
Aug14-14 02:14 PM
Drakkith
1 315
Hello All, Padmanabhan's discussion of dynamics mentions that in general the two dimensional harmonic oscillator...
Aug13-14 11:40 PM
victorvmotti
2 413
What exactly does it take to figure out the orbital parameters or planets and what's the Math behind it? Can it be...
Aug13-14 11:29 PM
puncheex
9 645
A star 890,000 light-years away patrols our galactic frontier By Ken Croswell, author of The Alchemy of the Heavens...
Aug12-14 01:41 PM
CygnusX-1
7 794
I invented my own phrase for a sky gazing experience; "Perfect Full Moon" It is something that I think most people...
Aug12-14 11:07 AM
anorlunda
4 521
I'd like to have two main questions about it. 1. Radiation protection : theoretically, were thick leaded glass...
Aug11-14 03:12 PM
Ryan_m_b
17 891
Disclaimer: I'm not a physicist I've never quite grasped interstellar gas clouds (i.e. the material for new stars)...
Aug9-14 06:20 PM
Dotini
22 7,003
With this post I am hoping someone would be kind enough to lead me in the right direction. I am a layman who knows...
Aug9-14 02:48 PM
soulmartyr
8 679
I could not find a thread about this (and I hope I don't start a duplicate one :smile:). I got a mail from a friend...
Aug7-14 12:30 AM
Drakkith
4 959
These papers, http://arxiv.org/abs/1402.4119 and http://arxiv.org/abs/1402.2301, make a case for direct detection of...
Aug6-14 10:39 PM
DennisN
9 1,280
I am currently autodidacting the basics of astrophysics, and I of course came across the term specific intensity. The...
Aug6-14 04:08 AM
litup
12 713
I am using the C library that comes with the book Astronomical Algorithms by Jean Meeus...
Aug5-14 08:00 AM
tfr000
3 2,481
Can two objects have same world line in Minkowski Space, if they are having same speeds ?
Aug5-14 01:09 AM
Simon Bridge
1 453
Hello. I would like to know. Does matter when heading towards a black hole then crossing the event horizon threshold...
Aug4-14 11:05 PM
Nugatory
3 586
Is it possible to calculate the entire orbit of an interstellar piece of rock that has entered our solar system from...
Aug4-14 10:38 PM
puncheex
9 1,367
Does anyone have a Matlab file for solving the stellar structure equations that they wouldn't mind passing along? I'm...
Aug4-14 12:28 PM
CommandoCody
5 742
Think about this hypothesis: Solar activity changes the distribution of mass on the sun. This change could move the...
Aug3-14 09:28 PM
D H
4 582
As a teacher, I am trying to help students understand the scale of the universe. Using the analogy of sand as...
Aug1-14 11:52 AM
trumpettree
5 1,592
Hello everybody! Extreme interferometers like Ligo, Virgo, Leo600, Tama300 try to detect gravitational waves...
Jul31-14 01:18 AM
Chronos
2 1,027
Calculating latitude at noon is easy: say I got ##73^o## on 6/20/2014 So, ##90^o-73^o=17^o## then...
Jul30-14 02:54 AM
z.js
11 4,587
I have seen some documanters,and I have talk with some people about this issue: "Did human go to Moon ?". Many...
Jul29-14 06:43 AM
Drakkith
2 697
hello, my name is shaad, i was wondering if both theories of spacial destruction (The Big Crunch and The Big Freeze)...
Jul29-14 02:54 AM
Drakkith
4 645
The hot side of Kepler-70b is immensely hot. It orbits a star 21.8 times brighter than the sun at a distance of just...
Jul28-14 08:57 PM
Drakkith
3 749
If Titan's hydrocarbon seas were seeded with tardigrades, would the tardigrades survive and thrive?
Jul28-14 11:14 AM
Mniazi
3 918
Hi fellas, I have taken white dwarf stars as my undergrad thesis choice, so I need some suggestion on good books on...
Jul25-14 01:17 PM
CygnusX-1
3 1,003

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