#space #science #photography #cosmos Space is all about triple-checking your work. When it comes to how fast the universe is expanding, new and extended Webb measurements have reaffirmed the accuracy of Hubble's calculations. According to Nobel laureate and researcher Adam Reiss, Webb has now spanned the whole range of what Hubble observed, and we can rule out a measurement error…with very high confidence. But why is the expansion rate so much faster than projected by the universe’s “baby pictures”? The source of this acceleration remains shrouded in mystery This image of NGC 5468, a galaxy located about 130 million light-years from Earth, combines data from the Hubble and James Webb space telescopes. This is the farthest galaxy in which Hubble has identified Cepheid variable stars. These are important milepost markers for measuring the expansion rate of the universe. The distance calculated from Cepheids has been cross-correlated with a type Ia supernova in the galaxy. Type Ia supernovae are so bright they are used to measure cosmic distances far beyond the range of the Cepheids, extending measurements of the universe's expansion rate deeper into space. This image is of a face-on spiral galaxy with four spiral arms that curve outward in a counterclockwise direction. The spiral arms are filled with young, blue stars and peppered with purplish star-forming regions that appear as small blobs. The middle of the galaxy is much brighter and more yellowish, and has a distinct narrow linear bar angled from 11 o’clock to 5 o’clock. Dozens of red background galaxies are scattered across the image. The background of space is black. Credit: Webb/Hubble

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The Elephant's Trunk Nebula ✨️

Like an illustration in a galactic Just So Story, the Elephant's Trunk Nebula winds through the emission region and young star cluster complex IC 1396, in the high and far off constellation of Cepheus. Also known as vdB 142, this cosmic elephant's trunk is over 20 light-years long. The detailed... read more

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Galaxy In a Galaxy 3D Animation

Got Bored Had a Mental Image Of This Shot, Didn't Really Do Anything With It After That... That's Art I Guess 😂 (edited)

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The Medusa Nebula ✨️

Braided and serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa Nebula. Also known as Abell 21, this Medusa is an old planetary nebula some 1,500 light-years away in the constellation #gemini. Like its #mythology namesake, the nebula is associated with a dramatic... read more

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A Video Game I Recommend for Contemplation

There is a game called Everything. In it, you can switch from being anything to anything else within range. You can explore the microscopic world or wander as a nebula. All the while, there are excerpts of a speech a very wise man gave to a group of nuclear physics students about the nature of the... read more

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