Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After only a few million years for the most massive stars, the enriched material is blasted back into interstellar space where star formation can begin anew. The expanding debris cloud known as Cassiopeia A is an example of this final phase of the stellar life cycle. Light from the supernova explosion that created this remnant would have been first seen in planet Earth’s sky about 350 years ago, although it took that light 11,000 years to reach us. This sharp NIRCam image from the James Webb Space Telescope shows the still-hot filaments and knots in the supernova remnant. The whitish, smoke-like outer shell of the expanding blast wave is about 20 light-years across. A series of light echoes from the massive star’s cataclysmic explosion are also identified in Webb’s detailed images of the surrounding interstellar medium.
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Supernova Remnant Cassiopeia A
Massive stars in our Milky Way Galaxy live spectacular lives. Collapsing from vast cosmic clouds, their nuclear furnaces ignite and create heavy elements in their cores. After only a few million years for the most massive stars, the enriched material is blasted back into interstellar space where star formation can begin anew. The expanding debris cloud known as Cassiopeia A is an example of this final phase of the stellar life cycle. Light from the supernova explosion that created this remnant would have been first seen in planet Earth’s sky about 350 years ago, although it took that light 11,000 years to reach us. This sharp NIRCam image from the James Webb Space Telescope shows the still-hot filaments and knots in the supernova remnant. The whitish, smoke-like outer shell of the expanding blast wave is about 20 light-years across. A series of light echoes from the massive star’s cataclysmic explosion are also identified in Webb’s detailed images of the surrounding interstellar medium.
I wish the rest of my life pass quickly, instantly or even in autopilot if possible
Being alive as a human means: - losing health while you grow up; - Witnessing the death of your friends and family members depending on how young you are; - Suffering in your own unique way, that you can’t communicate or explain properly.
How cryptocurrency’s second largest coin missed out on the industry’s boom (theguardian.com)
How cryptocurrency’s second largest coin missed out on the industry’s boom (theguardian.com)
Clouds (nasa.gov)
Source: NASA.
Data centers in space makes no sense (civai.org)
OpenClaw (a.k.a. Moltbot) is Everywhere All at Once, and a Disaster Waiting to Happen— OpenClaw is basically a cascade of LLMs in prime position to mess stuff up if left unfettered. (cacm.acm.org)