In the Dec. 23 & Jan. 6 SN: Our top stories of 2017, grounded pterosaur hatchlings, protectors of the Dead Sea Scrolls, a counterintuitive metamaterial, neutron star sizing, arrow of time reversed, E. coli in flour and more.
THIRD ROCK The keen eye of an AI program discovered that the star system Kepler 90, illustrated here, has an eighth world (dubbed Kepler 90i), which was previously overlooked in exoplanet searches.
Wendy Stenzel/Ames Research Center/NASA
IT’SELECTRIC A new type of energy source made with hydrogel disks (shown) works a lot like the power-producing organs inside electric eels.
Thomas Schroeder and Anirvan Guha
AI SPY A new type of artificial neural network has its virtual neurons (like the one illustrated above) organized into clusters called capsules. This helps the network more easily identify objects from new angles than its traditional counterparts.