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On the Trail of the Missing Galaxies: The Oldest Stars in the Neighborhood
Tom Brown, Space Telescope Science Institute
In the past decade, wide-field surveys have revealed a new class of ultra-faint dwarf galaxies orbiting the Milky Way and Andromeda. They are the least luminous, most dark-matter dominated, and least chemically-evolved galaxies known. These faint galaxies offer a new front in efforts to understand the missing satellite problem – the discrepancy that theory predicts many more satellite galaxies than the number of dwarf galaxies observed. As the best candidates for fossils from the early universe, the ultra-faint dwarfs are ideal places to test the physics of galaxy formation from that era. New data from the Keck Observatory and the Hubble Space Telescope provide evidence that reionization in the early universe suppressed star formation in the smallest seeds of galaxy formation, thus providing a possible explanation for the missing satellite problem.
Host: Dr. Frank Summers
Recorded live on September 6, 2016 at the Space Telescope Science Institute in Baltimore, MD, USA
For more information: http://hubblesite.org/about_us/public_talks/
The Challenge Games begin and we must destroy the Attack Helicopter!
Jen’s Channel http://youtube.com/gamingwithjen
Don’t forget to subscribe for epic Minecraft content!
Shirts! https://represent.com/store/popularmmos/
Facebook! https://www.facebook.com/pages/PopularMMOs/327498010669475
Twitter! https://twitter.com/popularmmos
Download Camo Lucky Block Mod http://popularmmos.com/luckyblockcamo/
Download Tech Guns Mod http://popularmmos.com/techguns/
RULES
– Start with 20 Lucky Blocks, 5 Super Lucky Blocks, 5 Unlucky Blocks, 10 apples, Iron Pickaxe, & Crafting Table
– Open all of them and craft the best items you can
– Do not take items or blocks from the world unless they came from your block
– Trade with villager to improve your items
– No Penalty for dying before the battle begins
– You may give items to the other player
– Beacons from Wells not allowed
– The winner from last time spawns the mobs
– The loser is the one who dies in the battle first
– Rounds go: 1 boss, 2 boss, 3, 4, 5, 6 each round harder…etc
– Running away from the mobs & leaving the other player is cheating
– Use the Arena to your advantage, but no placing blocks except TNT
In this Attack Helicopter Challenge Games Modded Mini-Game:
Lucky Blocks Mod Vs Attack Helicopter from the Tech Guns Mod, me against Jen who will survive the longest!
Intro by: https://www.youtube.com/calzone442
Intro song: Spag Heddy – Pink Koeks provided by Play Me Records:
https://www.youtube.com/user/playmerecords
Follow Spag Heddy: http://soundcloud.com/spagheddy
Royalty Free Music by http://audiomicro.com/royalty-free-music
Old theory on this topic: https://www.youtube.com/watch?v=VsrIIXWMj2Y
Thousand Sunny is the Anti-Pluton Theory: https://www.youtube.com/watch?v=227lqQBkQWc
Comment if you think I’m right/wrong, and try to improvise! Constructive criticism is always welcome.
ياسادة ياكرام اسمحوا لي ان اهديكم تجربة سريعة جدا جنيسيس جي ٩٠ V6 توين توربو دبي شكرا لمتابعتكم حسن ناجي كتبي
Genesis G90 V6 Twin Turbo quick review by Hasan Kutbi
Supposedly the Red Dead HD remake will be announced at the Playstation Event, but we’re suspect as f@ck. And we’re suspect on this NES emulator making its way to the Xbox One. Basically we’re not trusting anyone on the internet today.
Resident Evil 4 has been remastered, but how good is it? We take a look at what new features it brings and whether it’s worth buying.
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