An 8-year-old in Philadelphia received a new pair of hands. Doctors at the Children's Hospital of Philadelphia transplanted donor hands and forearms onto Zion Harvey in a 10-hour, groundbreaking procedure—the 40-member transplant team pulled off the world’s first hand transplant on a child, and doctors say Harvey is responding like they hoped.

Harvey lost his hands and his feet as a 2-year-old due to a life-threatening bacterial infection. And you might want to grab some tissues before you read this part: As if the little boy’s story isn’t moving enough, he told NBC News that he can't wait to hold his little sister.

He said: "My favorite thing [will be to] wait for her to run into my hands as I pick her up and spin her around." Discuss

A man in the Buffalo, New York, area was arrested for attempting to join ISIS and recruit others to the terrorist group. Allegedly, Arafat M. Nagi “proselytized” people in his area about jihad and planned to join up with ISIS in Turkey. Authorities say Nagi traveled to Istanbul, Yemen and Syria last year, and—though he claims he doesn’t support militant groups—his online activities says otherwise. For instance, he purchased a “tactical vest with armored plates” online. So it appears he was planning something. Discuss

Could the Marty McFly dream soon be a reality? Carmaker Lexus has released another look at its hoverboard, which it plans to formally unveil on August 5. Like the first video, the second brief clip leaves a lot of unanswered questions about the Slide, like how it works and if it is actually usable in real-life conditions, though the teaser does look pretty darn cool.The future we’ve been promised is almost here. Discuss

A prequel (of sorts) for the classic Dr. Seuss book One Fish, Two Fish releases today, more than two decades after the children’s book author died. The wife of “Dr. Seuss,” whose real name is Theodor Geisel, discovered the unpublished illustrated pages shortly after his death, but they were forgotten for more than decade. Today, What Pet Should I Get, which features some of the same characters as One Fish, Two Fish, is finally being sold to the public so that you can take a nostalgic trip back to the time when funny ryhmes and colorful illustrations were the optimal form of entertainment. Discuss

Despite threats that the city will be sued by gun advocate groups like the NRA, lawmakers in LA are placing a restriction on high-capacity firearms. City officials have voted to ban possession of ammunition magazines that hold more than 10 bullets. As the legal director for the Law Center to Prevent Gun Violence pointed out to The Los Angeles Times, these types of high-capacity magazines were used in a string of mass shootings at schools including Newton, Columbine and Virginia Tech. Following the unanimous vote of approval, Councilman Paul Krekorian told supporters, “If the NRA wants to sue us over this, bring it on.” Once the measure is signed into law, gun owners will have 60 days to surrender or legally sell their high-capacity magazines. Discuss

Here’s yet another reason why astronauts have an awesome job: They get to perform weird science experiments while floating around in zero gravity. Reel NASA has posted this video to YouTube, showing exactly what happens when you drop a dissolvable tablet into water that just happens to be floating around in a giant bubble. Experiments like this alone are worth the billions of dollars we’ve spent on the space program. Discuss