Show Notes: April 30th, 2013 UTC
Hosts: Paul, Harrison, and Jen (debut episode)
Title: Baking Anti-Matter Galaxies with Jen!
This week in space/astronomy history:
May 3 Space Day: http://www.spaceday.org/index.php/About-Us.html
May the Fourth be with you
May 4 Greenwich Observatory 1675
1. Saturn was at Opposition on April 28th http://www.universetoday.com/101730/saturn-reaches-opposition-on-april-28/
2. Eta-Aquarid Meteor Shower peaks on May 4th (about 30 meteors/hr)
3.60 cm telescope removal process
4. Music Monday
5. What’s up in Space hosted by the Astronuts and Dave Williams
Major Topics Discussed:
1. In search for antimatter galaxies
Why is the Universe made up of matter? The standard Model suggests that equal amounts of matter and antimatter should have been produced in the Big Bang. This leads to the idea that there is not perfect symmetry better matter and antimatter (CP Violation).
The CP Violation that has been experimentally confirmed does not explain the matter dominance of the Universe. Which raises the Question; what if all the matter and antimatter did not annihilate from the very beginning? What if some particles found themselves in complete isolation from one another? Could this have evolved into different matter and antimatter worlds?
Because antimatter does not look any different than ordinary matter, Astronomers would not be able to tell whether a distant galaxy is made of matter or antimatter by just looking at it.
AMS is looking for Anti-helium (or heavier antimatter elements) to confirm if there is a region of the universe dominated by antimatter. unfortunately this has not be detected yet, but AMS has only just begun.
2. VSS Enterprise
Virgin Galactic’s SpaceShip Two fired it’s rockets for 16 seconds and achieved a speed of Mach 1.2 and an altitude of 55,000 feet after dropping away from it’s mother-ship WhiteKniteTwo at an altitude of 47,000 feet.
3. Mars Solar Conjunction
NASA has been out of contact with all of its Mars-based spacecraft for a few days because Mars is on the opposite side of the Sun.
Also, the rover Opportunity rover slipped into a StandBy Mode unexpectedly. NASA is sending new commands up to the rover to try to rouse it.
Where In The Universe:
Last weeks image:
Answer: Tarantula Nebula
This weeks image:
Thanks for listening!
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