The always magnificent Pleiades

The always magnificent Pleiades

Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters. The Pleiades contains over 3000 stars, is about 400 light years away, […]

The Aug. 31 Blue Moon

The Aug. 31 Blue Moon

[Click on image for high resolution ] Rising at sunset, the gorgeous Full Moon of August 31 became the second Full Moon in a month. According to modern reckoning, that makes it a Blue Moon. In fact, parts of the Full Moon do look a little blue in this sharp lunar portrait. Taken just hours […]

8 years after entering Saturn’s orbit, Cassini captures season changes

8 years after entering Saturn’s orbit, Cassini captures season changes

PASADENA, Calif. — Posing for portraits for NASA’s Cassini spacecraft, Saturn and its largest moon, Titan, show spectacular colors in a quartet of images being released today. One image captures the changing hues of Saturn’s northern and southern hemispheres as they pass from one season to the next. A wide-angle view in today’s package captures […]

The red supergiant Antares and its spectacular field of view

The red supergiant Antares and its spectacular field of view

[CLICK ON IMAGE FOR HIGH RESOLUTION] Why is the sky near Antares and Rho Ophiuchi so colorful? … Fine dust illuminated from the front by starlight produces blue reflection nebulae. Gaseous clouds whose atoms are excited by ultraviolet starlight produce reddish emission nebulae. Backlit dust clouds block starlight and so appear dark. Antares, a red […]

Curiosity eyes Mt. Sharp from a crater on Mars, and prepares to go there

Curiosity eyes Mt. Sharp from a crater on Mars, and prepares to go there

The light peak is Mt. Sharp — an eventual destination of the Curiosity rover. … Curiosity’s is already on the move crossing the intermediate gravel field toward an interesting terrain feature named Glenelg. Curiosity has also already started analyzing its surroundings by zapping a nearby rock with its laser to analyze the chemical composition of […]

Curiosity’s view of the wall of Gale Crater on Mars

Curiosity’s view of the wall of Gale Crater on Mars

[FOR HIGH RESOLUTION IMAGE, CLICK ON IMAGE] The above image … is a high resolution version of a distant wall of Gale Crater captured by the Curiosity rover that landed on Mars last week. A corresponding true color image exists showing how this scene actually appears on Mars. The robotic Curiosity rover continues to check […]

Evidence suggests naturally-occurring quasicrystals had extraterrestrial origins

Evidence suggests naturally-occurring quasicrystals had extraterrestrial origins

Results from an expedition to far eastern Russia that set out to find the origin of naturally occurring quasicrystals have provided convincing evidence that they arrived on Earth from outer space. Writing in IOP Publishing’s journal Reports on Progress in Physics, Paul J Steinhardt and Luca Bindi reveal that new, naturally occurring quasicrystal samples have […]

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