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Science Space

Nasa unveils Pumpkin sun just in time for Halloween

Just in time for Halloween, NASA has posted a photo of the sun that looks like a massive flaming jack-o’-lantern.

NASA’s Solar Dynamics Observatory shot the photo earlier this month.

The fiery slits in the image reveal the most active parts of the sun.

Writes NASA:

Active regions on the sun combined to look something like a jack-o-lantern’s face on Oct. 8, 2014. The active regions appear brighter because those are areas that emit more light and energy — markers of an intense and complex set of magnetic fields hovering in the sun’s atmosphere, the corona. This image blends together two sets of wavelengths at 171 and 193 angstroms, typically colorized in gold and yellow, to create a particularly Halloween-like appearance.

Credit: NASA/GSFC/SDO
Categories
Space

The evolution of the spacesuit

As spacesuit design continues to become thinner and more dynamic — there are touchscreen sensitive gloves, an attached helmet and built-in ventilation in the latest uniform — it’s worth looking at how both US and Russian spacesuits have evolved over time.

Start by looking at the original suit designed for the moon mission above, then check out the diagram below. I still like the simplicity and balance of the Apollo A7-L EVA but the blue Apollo A5-L suit is ace as well.

Categories
Science Space

What the sunset looks like on Mars

NASA’s Curiosity Rover photographed this view of the sun setting from its 956th Martian day on Mars.

The above image is actually a sequence of four images taken over a span of 6 minutes, 51 seconds. Check out the full GIF below.

Said Mark Lemmon of Texas A&M University, College Station who planned the Curiosity mission: “The colors come from the fact that the very fine dust is the right size so that blue light penetrates the atmosphere slightly more efficiently.

“When the blue light scatters off the dust, it stays closer to the direction of the sun than light of other colors does. The rest of the sky is yellow to orange, as yellow and red light scatter all over the sky instead of being absorbed or staying close to the sun.”

So cool.