--- description: Meet the Twins Unlocking the Secrets of Space The Kelly twins--one in orbit and one on Earth--may help NASA unlock the secret of long-term space... title: TIME Magazine: 2015: The Year Ahead image: https://static.time.com/v3/assets/bltea6093859af6183b/bltd22ec98de32eae94/69876faacd68481e34098b57/2015-final-cover.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [Science](/section/science/) ## Science Update your preferences in [Account Settings](/account/preferences/) Close # In the Latest Issue (22 Dec 2014) by [TIME Staff](/author/time-staff/) ## TIME Staff Update your preferences in [Account Settings](/account/preferences/) Close Dec 22, 2014 3:11 PM CUT  Photograph by Marco Grob for Time by [TIME Staff](/author/time-staff/) ## TIME Staff Update your preferences in [Account Settings](/account/preferences/) Close Dec 22, 2014 3:11 PM CUT [Meet the Twins Unlocking the Secrets of Space ](http://time.com/3643775/mission-twinpossible/ "undefined")The Kelly twins–one in orbit and one on Earth–may help NASA unlock the secret of long-term space travel [America’s Uneasy Path Abroad in 2015](http://time.com/3639408/ian-bremmer-uneasy-path/ "undefined") The U.S. is still the world’s leading economy, but its geopolitical clout isn’t what it used to be [The 2014 Teddy Awards](http://time.com/3639419/joe-klein-2014-teddy-awards/ "undefined") In a dismal political year, these Americans went far beyond the call of duty [Amy Schumer: Class Clown of 2015](http://time.com/3639421/amy-schumer-americas-class-clown/ "undefined") The comedian has found a devoted audience by sending up sexism–including her own [Cuba Libre](http://time.com/3643778/u-s-cuba-relations/ "undefined") After more than 50 years, the U.S. looks to a future 90 miles away [A CIA Interrogator Speaks](http://time.com/3643797/cia-interrogator-speaks/ "undefined") After the Senate report, would the U.S. torture again? [The Nerd-Iverse](http://time.com/3643776/the-nerd-iverse/ "undefined") Where 2015’s heroes will duke it out and embark on journeys [World](http://time.com/3643777/world/ "undefined") [How to Make Your Resolution Stick](http://time.com/3643779/how-to-make-your-resolution-stick/ "undefined") One goal, 365 days. Science says you’ve got this [Sy Berger](http://time.com/3643780/sy-berger/ "undefined") Creator of the modern baseball card [After the Altar](http://time.com/3643781/after-the-altar/ "undefined") The next frontier for lgbt rights is equal treatment at home, work and in the public square [The General’s Burden](http://time.com/3643782/general-dempseys-burden-in-iraq/ "undefined") Martin Dempsey must decide whether to send U.S. ground troops to Iraq for a third war [What Sony’s Hackers Know](http://time.com/3643784/what-sonys-hackers-know/ "undefined") In cyberwar, information is a weapon–and our culture is the battlefield [No Company Is Immune to a Hack Like Sony’s](http://time.com/3643843/hollywood-hacked/ "undefined") Why no company is immune [Medicine’s Big Moves](http://time.com/3643786/medicines-big-moves/ "undefined") [Europe Plays Out Its Anxieties](http://time.com/3643787/europe-plays-out-its-anxieties/ "undefined") [2015 Discovery Calendar](http://time.com/3643788/2015-discovery-calendar/ "undefined") [Don’t Fear Artificial Intelligence](http://time.com/3641921/dont-fear-artificial-intelligence/ "undefined") Two great thinkers see danger in AI. Here’s how to make it safe. [Milestones](http://time.com/3643789/milestones/ "undefined") [How Bremmer Sees the World](http://time.com/3643790/how-bremmer-sees-the-world/ "undefined") [How We’ll Pay in 2015](http://time.com/3643792/will-you-be-paying-with-cash-or-credit-or/ "undefined") [Rebecca Minkoff’s Digital Retail Retrofit](http://time.com/3643793/rebecca-minkoffs-digital-retail-retrofit/ "undefined") Fashion boutiques are leading the charge to merge connected technology with real-world retail outlets [2015 Album Watch](http://time.com/3643795/2015-album-watch/ "undefined") The latest updates from some of music’s biggest names [Pot’s Candy Crisis](http://time.com/3643796/pots-candy-crisis/ "undefined") Edibles are throwing a wrench in the legal-weed movement [The Future of Food](http://time.com/3643798/food-trends-2015/ "undefined") From kale hybrids to ancient wine, here’s what’s trending for 2015 [Avenging Abby Wambach](http://time.com/3643799/avenging-abby-wambach/ "undefined") The world cup is the most important title in soccer–and the only big one Abby Wambach has never won. 2015 may be the last chance for one of the game’s all-time greats [The New Rules of Culture](http://time.com/3643800/the-new-rules-of-culture/ "undefined") [Climate Strange](http://time.com/3643801/climate-strange/ "undefined") Forget global warming–and get ready for global weirding [News Quiz: 2015’s Major Events](http://time.com/3643802/news-quiz-2015-major-events/ "undefined") Practice your punditry in 10 questions [2015 Culture Calendar](http://time.com/3643804/2015-culture-calendar/ "undefined") [Fear Index 2015](http://time.com/3643805/fear-index-2015/ "undefined") What to be afraid of–and what to be extremely afraid of–in 2015 [The New Rules of Power](http://time.com/3643806/the-new-rules-of-power/ "undefined") [Building An ‘Empire’](http://time.com/3643808/building-an-empire/ "undefined") Lee Daniels and Danny Strong—the team behind _The Butler_—launch a Shakespearean hip-hop drama for prime-time TV [Meet Larry Wilmore, Your New Fake News Host](http://time.com/3643809/meet-larry-wilmore/ "undefined") Comedy Central’s new guy has a few tricks up his sleeve [Jeb Bush, Mr. Sunshine](http://time.com/3643811/jeb-bush-mr-sunshine/ "undefined") He’s been out of politics for nearly a decade, but he thinks he knows how to fix the country [Hillary Clinton, Up, Up and Away](http://time.com/3643813/hillary-clinton-promises-upward-mobility/ "undefined") Hillary Clinton prepares a 2016 campaign on promises of upward mobility for the middle class [Supremes Watch](http://time.com/3643814/supremes-watch/ "undefined") From Obamacare to religious freedom, several charged issues will make their way back to the U.S. Supreme Court in 2015\. By the time the term ends this summer, we could have a definitive ruling on whether Chief Justice John Roberts’ court is the conservative juggernaut many believe it to be. [New Year, New Adventures](http://time.com/3643815/new-year-new-adventures/ "undefined") Top destinations for travelers of every kind–from art enthusiasts to history buffs [Water World](http://time.com/3643816/water-world/ "undefined") A massive Middle Eastern desalination plant could show how to quench a crowded planet’s growing thirst [Can a Risqué Novel Go Mainstream?](http://time.com/3643817/can-a-risque-novel-go-mainstream/ "undefined") [A Spare Heir](http://time.com/3643819/a-spare-heir/ "undefined") Sorry, George, there’s a new royal in town [Briefing](http://time.com/3643821/briefing/ "undefined") [Will Virtual Reality Finally Go Mainstream?](http://time.com/3643822/will-virtual-reality-finally-go-mainstream/ "undefined") [The Journey Ahead](http://time.com/3643823/the-journey-ahead/ "undefined") [The Future is Now](http://time.com/3643839/the-future-is-now/ "undefined") The lone hope of an otherwise lost season (ask Astros fans) comes from new prospects. Here’s who’s due to emerge in 2015. [Medicine Is About to Get Personal](http://time.com/3643841/medicine-gets-personal/ "undefined") How can Americans get better health care for less money? There’s a quiet experiment going on among primary-care physicians, and the results are intriguing [Crystal Ballers](http://time.com/3643845/silicon-valley-trends-2015/ "undefined") Silicon Valley’s top investors predict a big year for bitcoin, extruded gastronomy and me [Badge, Gun … Camera?](http://time.com/3643828/badge-gun-camera/ "undefined") [Drone Country: See America From Above](http://time.com/3627980/drone-country-see-america-from-above/ "undefined") Affordable drones are giving us a new—perhaps temporary—vantage on the world [2015 in Anniversaries](http://time.com/3643832/2015-anniversaries/ "undefined") Moments from the past you’re sure to hear about in the future ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/3644012/in-the-latest-issue-17/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/3644012/in-the-latest-issue-17/"},"headline":"In the Latest Issue (22 Dec 2014)","datePublished":"2014-12-22T15:11:26.000Z","dateModified":"2026-02-26T19:52:03.201Z","description":"Meet the Twins Unlocking the Secrets of Space The Kelly twins--one in orbit and one on Earth--may help NASA unlock the secret of long-term space...","url":"https://time.com/3644012/in-the-latest-issue-17/","keywords":[],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltd22ec98de32eae94/69876faacd68481e34098b57/2015-final-cover.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"TIME Staff","jobTitle":null,"url":"https://time.com/author/time-staff/"}],"articleSection":"Science","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltd22ec98de32eae94/69876faacd68481e34098b57/2015-final-cover.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"2015 The Year Ahead Scott Kelly Time Magazine Cover 141229","caption":"2015 The Year Ahead Scott Kelly Time Magazine Cover","creditText":"Photograph by Marco Grob for Time","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/science/","name":"Science"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/3644012/in-the-latest-issue-17/","name":"In the Latest Issue (22 Dec 2014)"}}]}] ```