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Does a Companion Star to Sun cause Earth's Periodic Mass Extinctions?
THE THEORIZED COMPANION STAR, THROUGH ITS GRAVITATIONAL PULL, UNLEASHES A FURIOUS STORM OF COMETS IN THE INNER SOLAR SYSTEM LASTING FROM 100,000 TO TWO MILLION YEARS. SEVERAL OF THESE COMETS STRIKE THE EARTH.
"Heavy snows are driven and fall from the world's four corners; the murder frost prevails. The Sun is darkened at noon; it sheds no gladness; devouring tempests bellow and never end. In vain do men await the coming of summer. Thrice winter follows winter over a world which is snow-smitten, frost-fettered, and chained in ice."
"Fimbul Winter" from Norse saga, Twilight of the Gods
By Lynn Yarris
Our species, Homo sapiens, arose approximately 250,000 years ago. In the beginning, we used tools of stone and sought shelter in caves. Today, our shelters scrape clouds and our tools allow us to see galaxies far beyond our own, or peer deep into the heart of matter itself. So much progress in such a short time, for in geological terms, the reign of our species has been but the proverbial blink of an eye. Imagine, however, what our record of achievement would be had our history been disrupted no less than five times by titanic nuclear wars, each delivering a destructive blast 10,000 times more powerful than the combined yield of all existing nuclear weapons in our world today.
Such upheaval is what many other species, including the dinosaurs, may have faced during the history of our planet, according to a theory set forth by a Lawrence Berkeley Laboratory (LBL) scientist and his colleagues. The theory postulates that every 26 to 30 million years, life on Earth is severely jeopardized by the arrival of a small companion star to the sun. Dubbed "Nemesis" (after the Greek goddess of retribution), the companion star�through its gravitational pull�unleashes a furious storm of comets into the inner solar system that lasts anywhere from 100,000 years to two million years. Of the billions of comets sent swarming toward the sun, several strike the Earth, triggering a nightmarish sequence of ecological catastrophes.
"We expect that in a typical comet storm, there would be perhaps 10 impacts spread out over two million years, with intervals averaging 50,000 years between impacts," says LBL astrophysicist Richard Muller. In 1984, Muller, along with UC Berkeley astronomer Marc Davis and Piet Hut, an astronomer with the Institute for Advanced Study at Princeton University, announced the Nemesis theory in Nature magazine. As could be expected, it was and remains controversial. However, although the evidence for the existence of Nemesis is still circumstantial, this evidence continues to mount, and the theory has so far withstood all challenges.
Nemesis was the culmination of a chain of events that began in 1977, in Gubbio, Italy, a tiny village halfway between Rome and Florence. Walter Alvarez, a UC Berkeley geologist, was collecting samples of the limestone rock there for a study on paleomagnetism. The limestone rock outside of Gubbio is a big attraction for geologists and paleontologists because it provides a complete geological record of the end of the Cretaceous period and the beginning of the Tertiary period. This transition took place 65 million years ago, and is of special significance to our species, for it marked the close of the "Age of Reptiles," when dinosaurs ruled the Earth. Sometimes referred to as "the Great Dying," the massive extinction that engulfed the dinosaurs claimed nearly 75 percent of all the species of life on our planet, including most types of plants and many types of microscopic organisms. As much as 95 percent of all living creatures might have perished at the peak of destruction.
Evidence Mounts For Companion Star To Our Sun
by Staff Writers
Newport Beach CA (SPX) Apr 25, 2006
The Binary Research Institute (BRI) has found that orbital characteristics of the recently discovered planetoid, Sedna, demonstrate the possibility that our sun might be part of a binary star system. A binary star system consists of two stars gravitationally bound orbiting a common center of mass.
Once thought to be highly unusual, such systems are now considered to be common in the Milky Way galaxy.
Walter Cruttenden at BRI, Professor Richard Muller at UC Berkeley, Dr. Daniel Whitmire of the University of Louisiana, amongst several others, have long speculated on the possibility that our sun might have an as yet undiscovered companion. Most of the evidence has been statistical rather than physical.
The recent discovery of Sedna, a small planet like object first detected by Cal Tech astronomer Dr. Michael Brown, provides what could be indirect physical evidence of a solar companion. Matching the recent findings by Dr. Brown, showing that Sedna moves in a highly unusual elliptical orbit, Cruttenden has determined that Sedna moves in resonance with previously published orbital data for a hypothetical companion star.
In the May 2006 issue of Discover, Dr. Brown stated: "Sedna shouldnt be there. Theres no way to put Sedna where it is. It never comes close enough to be affected by the sun, but it never goes far enough away from the sun to be affected by other stars... Sedna is stuck, frozen in place; there's no way to move it, basically there's no way to put it there – unless it formed there. But it's in a very elliptical orbit like that. It simply can't be there. There's no possible way - except it is. So how, then?"
"I'm thinking it was placed there in the earliest history of the solar system. I'm thinking it could have gotten there if there used to be stars a lot closer than they are now and those stars affected Sedna on the outer part of its orbit and then later on moved away. So I call Sedna a fossil record of the earliest solar system. Eventually, when other fossil records are found, Sedna will help tell us how the sun formed and the number of stars that were close to the sun when it formed."
SAO/NASA Astrophysics Data System (ADS)
Title: The location of Planet X
Authors: Harrington, R. S.
Journal: Astronomical Journal (ISSN 0004-6256), vol. 96, Oct. 1988, p. 1476-1478.
Bibliographic Code: 1988AJ.....96.1476H
Arguments for the presence of a distant large undiscovered Solar system planet
Murray, J. B.
Monthly Notices of the Royal Astronomical Society, Volume 309, Issue 1, pp. 31-34.
Aphelion distances of long-period comets show a slight excess around 30000 to 50000au from the Sun. Positions of cometary aphelia within these distance limits are aligned along a great circle inclined to both the ecliptic and the Galactic plane. This paper examines one of the possible explanations for this non-random clustering: that it is due to orbital perturbations by an undiscovered object orbiting within the above-mentioned distances. A model consistent with the observations gives a retrograde orbit (inclination 120 deg) for the object with a longitude of the ascending node at 77 deg+/-13 deg, a period of 5.8x10^6 yr and a radius of 32000au. The same model gives a present position for the undiscovered object of RA 20^h 35^m, Dec.+5 deg, with an error ellipse semimajor axis of 14 deg and a semiminor axis of 7 deg. The magnitude is likely to be fainter than 23. Such a distant object would almost certainly not remain bound for the age of the Solar system, and recent capture into the present orbit, although also of low probability, remains the least unlikely origin for this hypothetical planet.
Keywords: COMETS: GENERAL: PLANETS AND SATELLITES: GENERAL
DOI: 10.1046/j.1365-8711.1999.02806.x
Large 'Planet X' May Lurk Beyond Pluto
By Ker Than,LiveScience
Posted: 2008-06-19 17:56:30
Filed Under: Science News
(June 19) - An icy, unknown world might lurk in the distant reaches of our solar system beyond the orbit of Pluto, according to a new computer model.
The hidden world -- thought to be much bigger than Pluto based on the model -- could explain unusual features of the Kuiper Belt, a region of space beyond Neptune littered with icy and rocky bodies. Its existence would satisfy the long-held hopes and hypotheses for a "Planet X" envisioned by scientists and sci-fi buffs alike.
"Although the search for a distant planet in the solar system is old, it is far from over," said study team member Patryk Lykawka of Kobe University in Japan.
The model, created by Lykawka and Kobe University colleague Tadashi Mukai, is detailed in a recent issue of Astrophysical Journal.
If the new world is confirmed, it would not be technically a planet. Under a controversial new definition adopted by the International Astronomical Union (IAU) last week, it would instead be the largest known "plutoid."
The Kuiper Belt contains many peculiar features that cant be explained by standard solar system models. One is the highly irregular orbits of some of the belts members.
The most famous is Sedna, a rocky object located three times farther from the sun than Pluto. Sedna takes 12,000 years to travel once around the Sun, and its orbit ranges from 80 to 100 astronomical units (AU). One AU is equal to the distance between the Earth and the Sun.
In that image you can find the drawing of what is called a tenth planet, which is situated in the drawing at about 4.7 Billion miles away,
and it also shows a Dark Star situated at around 50 Billion miles away.
I think you're the one that is misreading the image. It is a scanned
page from a book. The probe plaque is irrelevant to the OP
Tenth Planet 4.7 billion miles
dead star
Originally posted by Chonx
Well done for putting this together
Certainly makes a much stronger case for the existence of another large body in the solar system then most of the threads pertaining to this subject. I'm still not convinced however and this object, be it a plutoid or a brown dwarf (dark star) could easily spend all of it's orbital period around the sun in the far reaches of the system. There is still nothing to suggest that it interacts at all with the inner solar system.
Fascinating stuff. I admire your candor for posting this in the face of the mountain of Niburu rubbish all over the internet. I just hope this thread doesn't turn into another worship session for the big 'N'.
I'd like to see the rest of that article (and more of that book)
No luck finding any likely candidates for this yet.
Content from external source:
The observatory also made headlines briefly with the discovery of an "unknown object" that was at first described as "possibly as large as the giant planet Jupiter and possibly so close to Earth that it would be part of this solar system." However, further analysis revealed that, of several unidentified objects, nine were distant galaxies and the tenth was "intergalactic cirrus". None were found to be Solar System bodies.
Originally posted by Aggie Man
I love the title of the thread...reminds me of a CNN or FOX news poll...."truth or Hoax" with no choice for other options...like miscalculation, misunderstood, etc...
Originally posted by Aggie Man
Now, on topic, I too have this book and have pondered the accuracy of this...I don't know that it is "truth" or a "hoax"....I would most likely label it as speculation.
OP for reminding me about this encyclopedia...now I need to get up in my attic and drag it out from the cobwebs.
S&F
March 28, 2007: Read a letter from Pioneer Project Anomaly project director Slava Turyshev on the status of the analysis of the recovered Pioneer data.
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Something strange is happening in the outer reaches of our solar system. The Pioneer 10 and 11 spacecraft are not where they are supposed to be. These missions, launched in 1972 and 1973, have covered hundreds of millions of kilometers, heading toward the edge of our solar system. But something is holding them back. Each year, they fall behind in their projected travel by about 5,000 kilometers (3,000 miles).
Jet Propulsion Laboratory scientist John Anderson and his colleagues have been searching for an explanation since 1980. But as of yet, they have found nothing conclusive; no spacecraft behavior or previously unknown property of the outer solar system can explain the deceleration of the Pioneer spacecraft. Scientists are being forced to consider the unthinkable: something may be wrong with our understanding of the laws of physics. An important line of inquiry will be to study mounds of Doppler (velocity) data and spacecraft status data (like temperatures) that have been unavailable to researchers—but that is about to change.
Focus: the Pioneer anomaly
To date, the Pioneer 10 and 11 spacecraft are the most precisely navigated deep-space vehicles. However, as indicated by their radio-metric data, the Pioneers’ orbit reconstructions were limited by a small, anomalous, constant, blue-shifted, Doppler frequency drift of approximately 6 x 10^-9 Hz/s. The drift can be interpreted as due to a constant sunward acceleration of a_P = (8.74 ± 1.33) 10^-10 m/s^2. This interpretation has become known as the Pioneer anomaly.
Although the most obvious explanation would be that there is a systematic origin to the effect, the limited set of the analyzed data does not support any of the suggested mechanisms. We assert that analysis of the entire existing Pioneer data is vital to understanding the anomaly and, hopefully, to finding its origin. Indeed, analysis of the entire existing Pioneer data record is critical in attacking the anomaly on two fronts: (i) an analysis of the early, not rigorously analyzed, data could yield a more accurate direction of the anomaly and hence might help to determine its origin; (ii) by using the entire data set, from 1972 to 2002, one could study the temporal evolution of the anomaly and determine if it is due to on-board nuclear fuel inventory and related heat radiation or other mechanism.
Anomalies in the Solar System
Dittus, Hansjoerg
37th COSPAR Scientific Assembly. Held 13-20 July 2008, in Montréal, Canada., p.717
Several observations show unexplained phenomena in our solar system. These observations are e.g. the Pioneer Anomaly, an unexplained constant acceleration of the Pioneer 10 and 11 spacecraft, the Flyby Anomaly, an unexplained increase of the velocity of a series of spacecraft after Earth gravity assists, the recently reported increase of the Astronomical Unit defined by the distance of the planets from the Sun by approximately 10 m per century, the quadrupole and octupole anomaly which describes the correlation of the low l contributions of the Cosmic Microwave Background to the orientation of the Solar system. Lacking any explanation until now, these phenomena are still investigated intensively. In my talk I will discuss the present status of those investigations and the attempts to find reasonable explantions.
Secular increase of the astronomical unit and perihelion precessions as tests of the Dvali–Gabadadze–Porrati multi-dimensional braneworld scenario
Lorenzo Iorio JCAP09(2005)006 doi: 10.1088/1475-7516/2005/09/006
PDF (313 KB) | HTML | References | Articles citing this article
Lorenzo Iorio
Viale Unità di Italia 68, 70125, Bari, Italy
E-mail: [email protected]
Abstract. An unexpected secular increase of the astronomical unit, the length scale of the Solar System, has recently been reported by three different research groups (Krasinsky and Brumberg, Pitjeva, Standish). The latest JPL measurements amount to 7 ± 2 m cy−1. At present, there are no explanations able to accommodate such an observed phenomenon, either in the realm of classical physics or in the usual four-dimensional framework of the Einsteinian general relativity. The Dvali–Gabadadze–Porrati braneworld scenario, which is a multi-dimensional model of gravity aimed at providing an explanation of the observed cosmic acceleration without dark energy, predicts, among other things, a perihelion secular shift, due to Lue and Starkman, of 5 × 10−4 arcsec cy−1 for all the planets of the Solar System. It yields a variation of about 6 m cy−1 for the Earth–Sun distance which is compatible with the observed rate of change for the astronomical unit. The recently measured corrections to the secular motions of the perihelia of the inner planets of the Solar System are in agreement with the predicted value of the Lue–Starkman effect for Mercury, Mars and, at a slightly worse level, the Earth.
6 The increase of the Astronomical Unit
6.1 The observation
From the analysis of radiometric measurements of distances between the Earth and the major planets including observations from Martian orbiters and landers from 1961 to 2003 a secular increase of the Astronomical Unit of approximately 10 m/cy has been reported (36) (see also the article (37) and the discussion therein).
6.2 Search for explanation
Time–dependent gravitational constant and velocity of light This increase cannot be explained by a time–dependent gravitational constant G because the ˙ G/G needed is larger than the restrictions obtained from LLR.
It has also been speculated that a time–dependent change in the velocity of light can be responsible for this effect. Indeed, if the speed of light becomes smaller, than ranging will simulate a drift of distances. However, a inspection of Kepler’s third law
T2 4π2
a3 = GM⊙
(17)
12
shows that, if one replaces the distance a by a ranging time a = ct, then effectively the quotient G/c3 appears. Only this combination of the gravitational constant and the speed of light governs the ratio between the orbit time, in our case the orbit time of the Earth. Consequently, a time–dependent speed of light is equivalent to a time–dependent gravitational constant. Since the latter has been ruled out to be possibly responsible for an increase of the Astronomical Unit, also a time–dependent speed of light has to be ruled out.
Cosmic expansion The influence of cosmic expansion by many orders of magnitude too small, see Sec.9.2. Neither the modification of the gravitational field of the Sun nor the drag of the planetary orbits due to the expansion is big enough to explain this drift.
Clock drift An increase of ranged distances might also be due to a drift of the time scale of the form t → t + αt2 for α > 0. This is of the same form as the time drift needed to account for the Pioneer anomaly. From Kepler’s third law one may ask which α is suitable in order to simulate the increase of the Astronomical Unit. One obtains α ≈ 3 · 10−20 s−1 what is astonishing close to the clock drift needed for a clock drift simulation of the pioneer anomaly, see Eq.(16) and below.
7 The quadrupole and octupule anomaly Recently an anomalous behavior of the low–l contributions to the cosmic microwave background has been reported. It has been shown that (i) there exists an alignment between the quadrupole and octupole with > 99.87% C.L. [38], and (ii) that the quadrupole and octupole are aligned to Solar system ecliptic to > 99% C.L. [39]. No correlation with the galactic plane has been found.
The reason for this is totally unclear. One may speculate that an unknown gravitational field within the Solar system slightly redirects the incoming cosmic microwave radiation (in the similar way as a motion with a certain velocity with respect to the rest frame of the cosmological background redirects the cosmic background radiation and leads to modifications of the dipole and quadrupole parts). Such a redirection should be more pronounced for low–l components of the radiation. It should be possible to calculate the gravitational field needed for such a redirection and then to compare that with the observational data of the Solar system and the other observed anomalies.
..........................
8.2 Other anomalies?
There is one further observation which status is rather unclear bit which perhaps may fit into the other observations. This is the observation of the return time of comets: Comets usually come back a few days before they are expected when applying ordinary equations of motion. The delay usually is assigned to the outgassing of these objects. In fact, the delay is used for an estimate of the strength of this outgassing. On the other hand, it has been calculated in (44) that the assumption that starting with 20 AU there is an additional acceleration of the order of the Pioneer anomaly also leads to the effect that comets come back a few days earlier. It is not clear whether this is a serious indications but a further study of the trajectories of comets certainly is worthwhile.