Astronomy
- 			 Physics PhysicsGravitational waves explainedColliding black holes send ripples through spacetime that can be detected here on Earth. What are these gravitational waves, and how did Advanced LIGO detect them? 
- 			 Physics PhysicsGravity waves from black holes verify Einstein’s predictionGravitational waves, tremors in the cosmic fabric of space and time predicted by Einstein a century ago, have finally been detected, opening a new avenue for exploring the universe. By Andrew Grant
- 			 Astronomy AstronomyReaders tussle over top science stories of 2015Readers tussle over the top spot in our top 25, questions about engineered vocal cords, and more in the February 20 Feedback. 
- 			 Astronomy AstronomyIn all sorts of circumstances, life finds a wayEditor in Chief discusses the new marine habitats formed by human pollution and the alarming rise of the Zika virus. By Eva Emerson
- 			 Science & Society Science & SocietySoviets nailed first landing on moonThe first spacecraft to safely land on the moon touched down on the lunar surface in 1966. 
- 			 Astronomy AstronomyLargest rocky world foundA planet roughly half the size of Neptune might be 100 percent rock, making it the largest known rocky world. 
- 			 Astronomy AstronomyOdd star’s dimming not aliens’ doingA star’s flickering light and century-long dimming have astronomers hunting for exocomet storms, prowling dust clouds and even alien engineers. 
- 			 Archaeology ArchaeologyBabylonians used geometry to track Jupiter’s movementsBabylonians took a geometric leap to track Jupiter’s movements long before European astronomers did. By Bruce Bower
- 			 Cosmology Cosmology‘The Cosmic Web’ weaves tale of universe’s architectureA new book chronicles the quest over the last century to understand how the universe is pieced together and how it came to be this way. 
- 			 Astronomy AstronomyMiddleweight black hole suspected near Milky Way’s centerA gas cloud in the center of the galaxy might be temporarily hosting the second most massive black hole known in the Milky Way. 
- 			 Astronomy AstronomyThe votes are in: Exoplanets get new namesArion, Galileo and Poltergeist are just three winners of a contest to name planets and suns in 20 solar systems. 
- 			 Astronomy AstronomyExploding star is the brightest supernova ever seenThe brightest known supernova put out more energy than 500 billion suns.