Posted on 08/21/2009 12:46:43 PM PDT by TaraP
A LARGE satellite galaxy may be lurking, hidden from view, next door to our own. Sukanya Chakrabarti and Leo Blitz of the University of California, Berkeley, suspected that the gravity of a nearby galaxy was causing perturbations that have been observed in gas on the fringes of the Milky Way. "We did a large range of simulations where we varied the mass of the perturber and the distance of closest approach," says Chakrabarti. In the best-fitting simulation, the unseen galaxy has about 1 per cent of the Milky Way's mass, or 10 billion times the mass of the sun. That's a lot. It means the object has roughly the same mass as the Milky Way's brightest satellite galaxy, the Large Magellanic Cloud (LMC). Right now, says Chakrabarti, the galaxy is roughly 300,000 light years away from us - about twice as far away as the LMC. But the simulations suggest it follows a highly elongated elliptical path, and about 300 million years ago it swept through our own galaxy just 16,000 light years from the galactic centre - closer in than Earth - disturbing the Milky Way's outskirts as it went.
(Excerpt) Read more at newscientist.com ...
...about 300 million years ago it swept through our own galaxy just 16,000 light years from the galactic centre -- closer in than Earth -- disturbing the Milky Way's outskirts as it went.
 |
||
| · join · view topics · view or post blog · bookmark · post new topic · | ||
...about 300 million years ago it swept through our own galaxy just 16,000 light years from the galactic centre -- closer in than Earth -- disturbing the Milky Way's outskirts as it went.
 |
||
| · join · view topics · view or post blog · bookmark · post new topic · | ||
| Google news searches: exoplanet · exosolar · extrasolar · | ||
The Mars Bar has a new name... Snickers Almond Bar. Roasted almonds, nougat, caramel and milk chocolate in a 1.76 oz candy bar. A box of 24 is $19.99.
Single bars are $1.05 each on the Pack-a-Bag page.
We first saw the Mars Bar in the United States in 1936. It contained nougat and almonds topped with caramel and covered with milk chocolate. It was renamed the Snickers Almond bar in 2000.
http://www.oldtimecandy.com/mars-bar.htm
Why would they change the name of just about the most famous candy bar in the world??? I don't get it.
Thanks!
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.