Astronomy
- 			 Astronomy AstronomyGiant rings encircle young exoplanetStretching 90 million kilometers from their center, 37 stripes of dust around exoplanet were probably crafted by moons. 
- 			 Cosmology CosmologyDust erases evidence for gravity wave detectionThe claimed detection of primordial gravitational waves does not hold up after taking into account galactic dust, a new analysis concludes. By Andrew Grant
- 			 Astronomy AstronomyNeptune-like worlds could become habitableMini-Neptunes can drift toward their stars and lose their atmospheres, leaving behind ice-rich rocky cores that can become watery worlds. 
- 			 Astronomy AstronomyOldest solar system unearthed by KeplerFive rocky planets orbit the 11.2-billion-year-old star Kepler 444, suggesting that Earth-sized worlds formed in the early universe. 
- 			 Planetary Science Planetary ScienceLarge asteroid buzzes EarthAsteroid 2004 BL86 swings by Earth today at three times the distance to the moon, the closest asteroid encounter until 2027. 
- 			 Astronomy AstronomyRocky planets around cool stars may have Earthlike climatesSmall, rocky planets that sit close to cool stars might be able to keep spinning, creating conditions hospitable to life. 
- 			 Astronomy AstronomyLarge rocky planets excel at ocean buildingRocky planets a few times as massive as Earth may build deeper oceans – and sustain them for longer – than smaller worlds. 
- 			 Astronomy AstronomyHubble telescope captures panorama of Andromeda galaxyThe Hubble Space Telescope captured a panoramic mosaic of the closest spiral galaxy to the Milky Way, mapping the light from over 100 million stars. 
- 			 Astronomy AstronomyPair of black holes prepare to take the plungeA pair of supermassive black holes in a distant galaxy will likely collide in the next million years. 
- 			 Astronomy AstronomyKepler telescope discovers another 554 possible planetsExtra year of Kepler telescope data adds 554 possible planets and eight confirmed ones that might be able to host life. 
- 			 Astronomy AstronomyHubble telescope snaps new images of iconic stellar nurseryHubble's new view of the Pillars of Creation, a star-forming region in the Milky Way, hints at how the nebula has changed over the last 20 years. 
- 			 Astronomy AstronomyEuropa’s geysers play hard-to-seeFollow-up observations of Europa failed to confirm the existence of geysers venting the Jupiter moon’s hidden ocean into space. By Andrew Grant