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While it may not seem like it, 2018 was much more than a year of political division, natural disasters and celebrity deaths. It was also a year filled with heartwarming animal stories.Here’s 21 of the best, most jovial animal tales to come out of 2018.Zoe returnsAfter being stolen from her front yard in Denver, good dog Zoe, a then-7-month-old Shih Tzu, was returned safely after five days. The thief 415

We've been working to refine, reduce, & replace animal tests for years. Today we’re pleased to announce our efforts resulted in a waiver & we can stop the study. We’ll make every effort to rehome the animals. Please read our full statement. 261

WASHINGTON, D.C. – President Donald Trump and his top advisers are being pressured to disclose more detail about the intelligence that led him to order the killing of top Iranian Gen. Qassem Soleimani. The general's death has greatly heightened tension with Tehran. Trump contended Tuesday that his decision saved American lives and that members of Congress will be briefed soon on what led to the attack. Defense Secretary Mark Esper tells reporters at the Pentagon that Iranian threats against Americans were “'days away" from being executed. Democrats are calling for more information to be declassified. 619

Watch live: Tune into a live stream of the debate in the video player below. Setting the stageThe first Democratic Party debate for the 2020 election cycle will include a record 20 participants with 10 candidates on stage at once. The debate will be divided between two nights - this Wednesday and Thursday. The debate will be aired on NBC, MSNBC and Telemundo from 9-11 p.m. ET both nights. The debate will be moderated by Savannah Guthrie, Lester Holt, Chuck Todd, Rachel Maddow and José Diaz-Balart. The rulesCandidates will have to talk fast as each candidate will only get 60 seconds to respond to each question and 30 seconds for follow-ups, according to NBC News. The candidates will not be afforded an opening statement, but will be allowed to deliver a closing statement. The candidatesThe Democratic National Committee used both polling and fundraising criteria to extend invitations to this week’s debate. Candidates needed to either have 65,000 donors or have at least 1 percent of the vote in a series of polls. The qualifying candidates were then split into two groups based on polling numbers. From there, the candidates were randomly picked for the two nights. Here is the lineup for Wednesday’s half of the debate: Sen. Cory Booker of New JerseySen. Elizabeth Warren of MassachusettsFormer Rep. Beto O'Rourke of TexasSen. Amy Klobuchar of MinnesotaFormer Rep. John Delaney of MarylandRep. Tulsi Gabbard of HawaiiFormer Housing Secretary Julián CastroRep. Tim Ryan of OhioNew York City Mayor Bill de BlasioWashington Gov. Jay InsleeHere is the lineup for Thursday’s half of the debate:Sen. Bernie Sanders of VermontSen. Kamala Harris of CaliforniaFormer Vice President Joe BidenMayor Pete Buttigieg of South Bend, IndianaSen. Michael Bennet of ColoradoAuthor Marianne WilliamsonRep. Eric Swalwell of CaliforniaSen. Kirsten Gillibrand of New YorkEntrepreneur Andrew YangGov. John Hickenlooper of Colorado.Why such a large field? One reason is many Democrats see an opportunity to win in 2020 with Trump’s disapproval rating consistently above 50 percent, according to Gallup. A second reason is that the DNC has changed its nominating rules, taking power away from so-called “Super Delegates” and allowing the primaries and caucuses to solely decide the party’s nominee. Isn’t this early for a debate?While the Democrats did not hold their first debate until 13 months before the general election in 2016 (there are still 16 months between now and the 2020 general election), that was relatively late. In 2008, the Democrats held their first debate more than 18 months before the general election. The Republicans held their first debate in 2016 less than 15 months before the election. In 2012, the GOP had its first debate 18 months out from the general election. In that case, it might have been a case of being too early. The May 2012 debate did not draw eventual nominee Mitt Romney to the stage. What the polls say?Like the Republicans in 2016, the Democrats have such a large field, all of the candidates could not fit on one stage. Unlike the Republicans, the Democrats opted to divide candidates between two debates at random rather than holding an “undercard” debate. But if polling is any indication, Thursday has the stronger candidates. Four of the top five candidates will be on the stage on Thursday, according to last week’s poll released by Mammoth University. Frontrunner Joe Biden along with Sen. Kamala Harris, Sen. Bernie Sanders and Mayor Pete Buttigieg will share a stage Thursday. Sen. Elizabeth Warren is the only candidate among the top 5 who will be on stage Wednesday. What will be discussed?President Donald Trump, obviously. A Mommouth University poll from February showed that electability is a strong consideration for Democrats. Of those surveyed, 56 percent of Democrats said that they would prefer a candidate who could beat Trump rather than a candidate they would agree with. Just 33 percent said the opposite. With that in mind, it is safe to say some candidates will go after Trump rather than trying to win points with policy. That doesn’t mean Democrats on the stage won’t be challenged. Will Biden be challenged on his comments about working with senators who supported segregation? Will Buttigieg be asked about his handling of a recent police-involved shooting in South Bend, Ind? What about Sanders’ plan to erase student loan debt in the US? These are all likely questions to come up. When are the primaries and caucuses?The first caucus is in Iowa on February 3. The first primary is eight days later. Arguably the most important day will be March 3 when at least 14 states are slated to vote. 4668

When the universe formed during the Big Bang 13.8 billion years ago, the chemical reactions of the aftermath formed the first molecules. Those first molecules were crucial in helping form everything we know, but they're also absent.And although HeH+, the helium hydride ion, has been proposed for years as that first molecule, scientists couldn't find any evidence of its existence in space -- until now. The findings were published Wednesday in the journal 470