Sethbag says on the MADB:
Everyone else - the notion that this Earth came from somewhere else a few thousand years ago and joined this Solar System after the "fall" of Adam, does not agree with scientific observation and theories of solar system development and the history of this planet, that are well supported. If you guys wish to believe Brigham Young instead of the scientists, that's your prerogative, but I have to ask: why draw the line at disbelieving BY about Moon Quakers, but believe him on Earth zipping out of Kolob's orbit to our Sun? It's obvious he was wont to pronounce on matters beyond his ken. Why believe him on this one?
Indeed, why should we believe isolated (and therefore nondoctrinal) statements of the prophets when the Church says we shouldn't? But, you might point out, it's printed in the Ensign which is a doctrinal work. True enough. But it also has to be presented as doctrine. Such is not necessarily the case here.
For example, a lesson might say..."Teach the children that the Earth moved through space from an orbit around Kolob to an orbit around our sun when Adam fell."
Or an article might simple state "The Earth moved through space from an orbit around Kolob to an orbit around our sun when Adam fell."
In various places throughout the article, portions of it are prefaced by "Abraham was shown" and "Abraham was taught" etc. However, the part in question states....
According to President Brigham Young, Abraham 5:13 [Abr. 5:13] also means that before the Fall of Adam, the earth was near the very throne of God. But when the Fall occurred, the earth literally fell or moved from the physical presence of God to its present position in our solar system. When all the effects of the Fall of Adam are finally overcome, the earth will literally move back into the presence of God. Here are President Young’s words:
So this is only according to BY, possibly making it one of many possible interpretations. Is it, however, a doctrine according to the Church?
Notice also the verse that supposedly verifies this fall through space.....
But of the tree of knowledge of good and evil, thou shalt not eat of it; for in the time that thou eatest thereof, thou shalt surely die. Now I, Abraham, saw that it was after the Lord’s time, which was after the time of Kolob; for as yet the Gods had not appointed unto Adam his reckoning.
Abraham 5:13
This shows even more that this 'fall through space' is BY's opinion and not doctrine. He's simply assuming that because the episode in the Garden was according to the Lord's time, then the earth must have been physically near Kolob.
In other words, no need for Sethbag to get his panties in a knot and no need for LDS of scientific bent to be worried.