Space.com contributing writer Stefanie Waldek is a self-taught space nerd and aviation geek who is passionate about all things spaceflight and astronomy.
When we picture what's in deep space, we often think of static images — colorful composites of distant objects like, frozen in time. The reality is that everything is moving, and it's moving fast. But given the vast distances involved, it's hard for us to see that motion., however, has been taking images for decades — long enough to compile timelapses that show the movement of deep space objects.
Cas A is another supernova remnant; it's located about 11,000 light years away. Its explosion was witnessed on Earth around 340 years ago. In the new Chandra timelapse, its expanding outer region shows the initial blast wave making its way out into space. Multiple shock waves move in opposite directions while rippling through the remnant, which you can see in the video. For this timelapse, 19 years of Chandra observations were strung together to capture the motion.
With a background in travel and design journalism, as well as a Bachelor of Arts degree from New York University, she specializes in the budding space tourism industry and Earth-based astrotourism. In her free time, you can find her watching rocket launches or looking up at the stars, wondering what is out there.
France Dernières Nouvelles, France Actualités
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