Home > Astronomy, Cosmology, General Astronomy, Milky Way > Scientists Discover That Milky Way Was Struck Some 100 Million Years Ago, Still Rings Like A Bell

Scientists Discover That Milky Way Was Struck Some 100 Million Years Ago, Still Rings Like A Bell


Our galaxy, the Milky Way, is a large spiral galaxy surrounded by dozens of smaller satellite galaxies. Scientists have long theorized that occasionally these satellites will pass through the disk of the Milky Way, perturbing both the satellite and the disk. A team of astronomers from Canada and the United States have discovered what may well be the smoking gun of such an encounter, one that occurred close to our position in the galaxy and relatively recently, at least in the cosmological sense.

“We have found evidence that our Milky Way had an encounter with a small galaxy or massive dark matter structure perhaps as recently as 100 million years ago,” said Larry Widrow, professor at Queen’s University in Canada. “We clearly observe unexpected differences in the Milky Way’s stellar distribution above and below the Galaxy’s midplane that have the appearance of a vertical wave — something that nobody has seen before.”

Full Story: http://www.fnal.gov/pub/presspass/press_releases/2012/milky-way-20120628.html

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  1. July 3, 2012 at 4:16 pm

    I have written poetry that seems far out to some and can say that I am pleased that students are documenting observations. I most certainly believe that the surface is just being scratched and much more will become apparent in the near future.

    What a man thinkest is and therefore there is something to vision becoming reality.

    God is Awsome!

    Ciao, Ya’ll

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