Vijayan's night frog (Nyctibatrachus pulivijayani), a 13.6 mm miniature-sized frog from the Agasthyamala hills in the Western Ghats in India, sits comfortably on a thumbnail. It is one of seven newly discovered frog species. SD Biju hide caption

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SD Biju

This artist's rendering shows what one of the seven planets, TRAPPIST-1f, might look like. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

Astronomers Find 7 Earth-Size Planets Around A Nearby Star

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The Apollo 11 command module Columbia sits in the Mary Baker Engen Restoration Hangar in Virginia, where it is undergoing conservation. Dane Penland/National Air and Space Museum/Smithsonian Institution hide caption

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Dane Penland/National Air and Space Museum/Smithsonian Institution

This is what failed to happen on Wednesday morning. In this image from April 17, 2015, a robotic arm on the International Space Station grasps a SpaceX Dragon cargo ship during docking. NASA/AP hide caption

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NASA/AP

An airstrike targeting an Islamic State group cash and finance distribution center near Mosul, Iraq, as shown in a video released by the U.S. military. AP hide caption

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AP

New Report Finds ISIS Territorial Defeats Are Also Hitting The Group's Wallet

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In 1852 — three years before Leaves of Grass — Walt Whitman anonymously published a short novel, in six parts, in New York's Sunday Dispatch. FPG/Getty Images hide caption

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FPG/Getty Images

Grad Student Discovers A Lost Novel Written By Walt Whitman

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At approximately 66 years old, Wisdom, the world's oldest known breeding bird in the wild, is a mother again at Midway Atoll National Wildlife Refuge and Battle of Midway National Memorial in Hawaii. Naomi Blinick/USFWS Volunteer hide caption

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Naomi Blinick/USFWS Volunteer

Atmospheric rivers are sinews of moisture from the tropics. The one pictured here appeared over the Northern Pacific on Jan. 3. NOAA hide caption

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NOAA

New Research Shows How 'Atmospheric Rivers' Wreak Havoc Around The Globe

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An artist's concept shows the WISE spacecraft in its orbit around Earth. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

Have Spare Time? Try To Discover A Planet

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New Jersey Gov. Chris Christie and his wife, Mary Pat Christie, visited the White House this week, ahead of a court date related to lane closures on the George Washington Bridge. Evan Vucci/AP hide caption

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Evan Vucci/AP

President Trump says news reports about contacts between his team and Russia's intelligence agencies are the result of conspiracy theories. Trump is seen here at the White House on Tuesday. Mark Wilson/Getty Images hide caption

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Mark Wilson/Getty Images

Reports: U.S. Intercepted Calls Between Trump Campaign Staff And Russian Intelligence

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Felix Kjellberg, better known as PewDiePie, signs copies of his book This Book Loves You at a Barnes & Noble in New York City in 2015. John Lamparski/Getty Images hide caption

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John Lamparski/Getty Images

Tiny minerals in the clay of this jar hold information about the strength of the Earth's magnetic field at the time the jar was fired, thousands of years ago. Image courtesy of Oded Lipschits hide caption

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Image courtesy of Oded Lipschits

Connecticut's Napheesa Collier, (center) celebrates with teammates (from left) Crystal Dangerfield, Saniya Chong and Gabby Williams in Storrs, Conn., after beating South Carolina 66-55 — the Huskies' 100th win. Jessica Hill/AP hide caption

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Jessica Hill/AP

UConn Women Win Historic 100th Game In A Row

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