aol Here we go! T-0 to takeoff. #CitizenMars is premiering live now. Follow along as five people prepare for their exciting one-way trips to the Red Planet: http://engt.co/MARS 14h

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aol Happy #InternationalPrimateDay from this adorable #baby #monkey in #Munich! One third of primates are considered to be critically #endangered or vulnerable, but International Primate Day works to spread #awareness and #celebrate the #animals. (: Christof Stache/AFP/Getty Images) 18h

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aol We love these #gorgeous #fall colors at Wrangel-St.Elias #NationalPark in #Alaska. We can't believe #falliscoming! #HelloSeptember #HappySeptember #Firstofthemonth (: Getty Images) 19h

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aol 18 years ago today, the world lost the incredible #PrincessDiana to a car crash in #Paris. Today, we remember the #beautiful and charming woman who was a mother of two and a #princess and #rolemodel to many. (: Jayne Fincher/Getty Images) 2d

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aol The #TaylorSwift and #NickiMinaj joint performance opening the show was one of the most talked about performances from last night's #VMAs! What was your favorite part of the #2015 #VMAs? Tell us in the comments below! (: Kevin Winter/Getty Images For MTV) 2d

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aol Happy birthday, #CameronDiaz! We can't believe the #flawless and practically #ageless actress turns 43 today! (: Stuart C. Wilson/Getty Images) 3d

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aol #MichaelJackson, the #KingOfPop, would have celebrated his 57th #birthday today. We can't believe the #music #legend has been gone for six years now. #HBD #RIP (: Luke Frazza/Getty Images) 4d

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aol 10 years ago, #HurricaneKatrina hit New Orleans, effecting over 15 million people and killing more than 1,800. The devastating #hurricane left the people of #NewOrleans and its surrounding areas in shock, creating long-lasting damage. The bottom photo shows a bridge in New Orleans just three days after the hurricane hit, and the top photo shows that same bridge today. #Katrina10 (: Mario Tama/Getty Images) 4d

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aol This upcoming Saturday, August 29th, marks the 10 year anniversary of Hurricane Katrina. Thousands were killed by the storm's power and many more were displaced. AOL's original mini-documentary takes a first-person look at the recovery in one of the hardest hit areas, the Lower 9th Ward.
For full coverage of the 10th anniversary of #HurricaneKatrina, check out AOL.com.
5d

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aol On August 28, 1996, #PrincessDiana and #PrinceCharles officially called it quits and announced their divorce. It's been 19 years, and we're still just as #obsessed with the #RoyalFamily as we were back then. #Flashback #Friday (: Anwar Hussein/Getty Images) 5d

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aol Happy #TBT! On this day in 1965, #TheBeatles and #ElvisPresley met for the first and only time. We can't believe it's been 50 years! Here's a picture of the #iconic #music foursome three years before they met the #KingOfRockNRoll. #Throwbackthursday (: Michael Ochs Archives/Getty Images) 6d

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aol Happy #NationalDogDay! How #adorable are these #beagle #puppies? We're totally in love! #DogsRule #HappyNationalDogDay (: Getty Images) 7d

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aol Today is the 99th #anniversary of the #NationalParkService! This amazing photo was taken at the #GrandCanyon in #Arizona. Isn't this #sunrise absolutely #beautiful? #FindYourPark (: Kojihirano/Getty Images) 1w

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aol Happy 28th #birthday to the beautiful #BlakeLively! The actress first became popular for her roles in #GossipGirl and #SisterhoodOfTheTravelingPants, and since then, the #fashion icon has taken #Hollywood by storm. Happy birthday, Blake! (: Vittorio Zunino Celotto/Getty Images) 1w

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aol Our mouths are totally watering over these #delicious #waffles for #NationalWaffleDay. What do you like on your waffles? Tell us in the comments below! #foodstagram #yummy #food #breakfast (: @cookingandbeer) 1w

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aol #BaoBao, the baby #panda at the #Smithsonian, turns 2 years old today. Bao Bao is one of only several hundred giant pandas alive today in captivity. Happy birthday to this fuzzy and #adorable creature! (:Chip Somodevilla/Getty Images) 1w

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aol Happy 42nd #birthday to the classic #funny girl, #KristenWiig! From #SNL to #Bridesmaids, you always know how to make us laugh. (: Tommaso Boddi/Getty Images) 2w

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aol 56 years ago today, #Hawaii became the 50th state to join the United States! We're celebrating with this beautiful picture of the #sunset at a secret #beach in #Oahu, Hawaii. #Paradise (: Harold G. Herradura/Getty Images) 2w

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aol Happy 23rd birthday to the #inspiring #DemiLovato! We love your music #Demi, but we love your strength and positivity, too! #HappyBirthdayDemi #23 (: Alexander Tamargo/Getty Images for iHeartMedia) 2w

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aol Watch #LittleMixAnniversary LIVE NOW on AOL.com! #LittleMix #4YearsOfLittleMix 2w

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