It’s been another year of groundbreaking science, and once again the time has come to reflect on all that’s been accomplished in 2015.

Throughout the year, Discover’s team of editors keeps tabs on the spectrum of scientific disciplines to identify the most important stories of the year. It’s a long process filled with plenty of spirited debates, but our freshly minted Year in Science issue has finally reached newsstands in your neighborhood.

Although Pluto shined the brightest in 2015,
Source: Discover Magazine