A Horseshoe Einstein Ring from Hubble What's large and blue and can wrap itself around an entire galaxy? A gravitational lens mirage. Pictured above, the gravity of a luminous red galaxy (LRG) has gravitationally distorted the light from a much more distant blue galaxy. More typically, such light bending results in two discernible images of the distant galaxy, but here the lens alignment is so precise that the background galaxy is distorted into a horseshoe -- a nearly complete ring. Since such a lensing effect was generally predicted in some detail by Albert Einstein over 70 years ago, rings like this are now known as Einstein Rings. Although LRG 3-757 was discovered in 2007 in data from the Sloan Digital Sky Survey (SDSS), the image shown above is a follow-up observation taken with the Hubble Space Telescope's Wide Field Camera 3. Strong gravitational lenses like LRG 3-757 are more than oddities -- their multiple properties allow astronomers to determine the mass and dark matter content of the foreground galaxy lenses.
Did you know there were tectonic forces in Mars? ⠀ ⠀ These prominent trenches, captured by Mars Express, were formed by faults that pulled the planet’s surface apart less than 10 million years ago. They cut through impact craters and hills along the way, as well as 10 million year old volcanic plains, indicating the relative youth of their formation.
"Impressive Picture. What would you title this picture? 🌌💫 Photo from: .trafford" . credit: @space_color_ . C'monBoard Astronomy brings together the best photographs of space. To discover everything about astronomy, check out the C’monBoard website [link in the bio] . . . . Check out our astronomy-themed products at cmonstore.com
Sunset this past Friday night was a beautiful light show. We haven't had clouds or a sunset like this in a long time. The burn lasted for 10 minutes. Night's like these you'll find me dancing in celebration next to my tripod with glee. . . . .
Shot with my new Breakthrough Photography ND 6 filter. No color correction required ✌🏼