Wikipedia picture of the day on November 22, 2017: Inui-yagura Turret, guarding the outer moat of Osaka Castle and the skyline of Osaka Business Park, Osaka, Japan. Wikipedia"
Tuesday, November 21, 2017
Monday, November 20, 2017
Wikipedia picture of the day on November 21, 2017: Female Giant kingfisher (Megaceryle maxima) smashing a tilapia against a post to break its spine on Lake Naivasha, Kenya. To celebrate World Fisheries Day. Wikipedia"
Sunday, November 19, 2017
Yes, but have you ever taken a selfie on Mars? The Curiosity rover on Mars has. This selfie was compiled from many smaller images -- which is why the mechanical arm holding the camera is not visible. (Although its shadow is!) Taken in mid-2015, the featured image shows not only the adventurous rover, but dark layered rocks, the light colored peak of Mount Sharp, and the rusting red sand that pervades Mars. If you look closely, you can even see that a small rock is stuck into one of Curiosity's aging wheels. Now nearing the end of 2017, Curiosity continues to explore the layers of sedimentary rocks it has discovered on Vera Rubin Ridge in order to better understand, generally, the ancient geologic history of Mars and, specifically, why these types of rocks exist there. via NASA
Wikipedia picture of the day on November 20, 2017: A view from the observation deck at the top station of the Duquesne Incline in Pittsburgh, Pennsylvania, USA. The Duquesne Incline is one of two surviving inclines in Pittsburgh, the other being the Monongahela Incline. Wikipedia"
Saturday, November 18, 2017
Young stars themselves are clearing out their nursery in NGC 7822. Within the nebula, bright edges and complex dust sculptures dominate this detailed skyscape taken in infrared light by NASA's Wide Field Infrared Survey Explorer (WISE) satellite. NGC 7822 lies at the edge of a giant molecular cloud toward the northern constellation Cepheus, a glowing star forming region that lies about 3,000 light-years away. The atomic emission of light by the nebula's gas is powered by energetic radiation from the hot stars, whose powerful winds and light also sculpt and erode the denser pillar shapes. Stars could still be forming inside the pillars by gravitational collapse, but as the pillars are eroded away, any forming stars will ultimately be cut off from their reservoir of star stuff. This field spans around 40 light-years at the estimated distance of NGC 7822. via NASA
Friday, November 17, 2017
Friday, an old Moon smiled for early morning risers. Its waning sunlit crescent is captured in this atmospheric scene from clear skies near Bursa, Turkey, planet Earth. In the subtle twilight hues nearby celestial lights are Jupiter (top) and Venus shining close to the eastern horizon. But today, Saturday, the Moon will be new and early next week its waxing crescent will follow the setting Sun as it sinks in the west. Then, a young Moon's smile will join Saturn and Mercury in early evening skies. via NASA