許偉帆

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Photographer Justin Ng (www.justinngphoto.com/) of Singapore captured this breathtaking image of a lunar halo over Mersing, Malaysia. http://oak.ctx.ly/r/am5o Light from the moon is diffracted by ice crystals as it passes through Earth's atmosphere, causing this beautiful phenomenon.

Dense filaments of gas in the IC5146 interstellar cloud are seen in this infrared photo from ESA’s Herschel Space Obsevatory, which was shut off in June after it ceased scientific work in April. See more amazing images from Herschel: http://oak.ctx.ly/r/amk0

NASA's infrared eye on the universe, the Spitzer Space Telescope, celebrated its 10th year in space on Sunday (Aug. 25), and it's still going strong. http://oak.ctx.ly/r/anri Here, a montage of images taken by NASA's Spitzer Space Telescope over the years.

The planet Neptune reaches opposition this week and you can catch live telescope views of the blue gas giant planet tonight (Aug. 26) in a special hour-long webcast, starting at 10 p.m. EDT (0200 Aug. 27 GMT): http://oak.ctx.ly/r/ap4q

Intriguing structures mark galaxy NGC 474’s unusual appearance. Astronomer call it a shell galaxy owing to stars creating the well-defined structures through some as-yet-not-understood process. http://oak.ctx.ly/r/8xzv

In 1610, Galileo Galilei turned his telescope toward Jupiter and saw four tiny points of light accompanying the planet. These are the Galilean satellites, the smallest of which is the intriquing Europa. Learn about Europa: http://oak.ctx.ly/r/8yq5 See the full infographic here: http://oak.ctx.ly/r/8yq6

Astronomers using NASA's Spitzer Space Telescope have detected a system of young, blinking stars surrounded by a dusty "hula-hoop" of stellar leftovers that could form planets one day. http://oak.ctx.ly/r/8z31 In this artist's impression, a disk of dusty material leftover from star formation girds two young stars like a hula hoop.

This stunning space wallpaper shows the view of the sun from the SWAP (Sun Watcher using Active Pixel System detector and Image Processing) instrument onboard ESA's Proba-2 satellite. http://oak.ctx.ly/r/9061

A lonely dwarf spiral galaxy, NGC 6503, spins beautifully in the constellation Draco (the Dragon) in this night sky photo captured by astrophotographers Bob and Janice Fera (www.feraphotography.com/) over several nights in May 2013 from Eagle Ridge Observatory in Foresthill, California. http://oak.ctx.ly/r/65lt