Unanswered phenomenon in earth orbit

1. Jul 6, 2008

What are the phenomenon so far encountered by scientists, that happens in earth orbit? I mean observational anomaly

One of such phenomenon is pioneer anomaly.

what are the others?

Anyone please add to the list, or refer me to some reading resource

Last edited: Jul 6, 2008
2. Jul 6, 2008

OSalcido

3. Jul 6, 2008

that i already tried

4. Jul 6, 2008

DaveC426913

You are painting with an extremely broad brush: The pioneer probes are farther than Earth orbit by 6 or 7 orders of magnitude - (i.e. if each individual bristle is an Earth orbit, then your brush is about 5 kilometers wide)

5. Jul 7, 2008

Staff: Mentor

I don't get this brush thing... if each bristle is 150 mln km how is it possible for the brush to be 108 times thinner?

6. Jul 7, 2008

Staff: Mentor

I think Dave meant to say if you reduce an Earth orbit to the size of a bristle, the brush with which the OP is painting is about 5 kilometers wide.

7. Jul 7, 2008

Staff: Mentor

OK, makes sense this way.

8. Jul 9, 2008

I actually meant, pioneer anomaly is an anomaly detected first while that spacecraft was in earth orbit. it got more kinetic energy, than it was supposed to.

This anomaly is yet unexplained.

I asked for similar anomaly and observational problems.

thanx

9. Jul 9, 2008

DaveC426913

I am highly dubious of this. Do you have a reference for iths?

10. Jul 9, 2008

11. Jul 9, 2008

DaveC426913

And where in there does it say that the craft was affected while still in Earth orbit??

12. Jul 9, 2008

Sorry, I mixed this with pioneer anomaly:

http://en.wikipedia.org/wiki/Flyby_anomaly

This is in earth orbit, and effect is same (though internal mechanism might be different) - unexplained increase of energy.

13. Jul 9, 2008

cristo

Staff Emeritus
The topic of this thread is ridiculously broad. adastra, I suggest that you take some time to think about the questions you wish to ask, and formulate them in some detail. I'm closing this thread. If you wish to ask a specific question, then please start a new thread. Also, note that wikipedia is not acceptable as a reference here at PF: you must link to a published, peer-reviewed paper.