Billiam

This is a picture of our place in the cosmos. A single journey around the center of the Milky Way takes our solar system roughly 250 million years. That is a timescale that makes all of human history — which spans about 300,000 years — seem like a mere blink of an eye. Situated about 26,000 light-years from the galactic core, our Sun and its orbiting planets reside in a massive stellar metropolis that stretches 100,000 light-years across and is 1,000 light-years thick. Within this colossal spiral structure, scientists estimate there are roughly 200 billion stars and an incredible 3.2 trillion planets, each representing a potential living world of its own. Yet, as vast as our home galaxy is, it represents only a microscopic fraction of the grander cosmos. According to NASA, the observable universe is home to an estimated 2 trillion galaxies, each containing its own mind-boggling collection of stars and planetary systems. This staggering realization shifts our understanding of existence, illustrating that while our corner of space is incredibly specific, we are part of an impossibly vast and beautifully chaotic tapestry that we have only begun to explore. source: National Aeronautics and Space Administration. (2019). Our Milky Way Galaxy: How Big, How Old, How Fast? NASA Science.

$AstronomyVibes's tweet photo. This is a picture of our place in the cosmos. A single journey around the center of the Milky Way takes our solar system roughly 250 million years. That is a timescale that makes all of human history — which spans about 300,000 years — seem like a mere blink of an eye. Situated about 26,000 light-years from the galactic core, our Sun and its orbiting planets reside in a massive stellar metropolis that stretches 100,000 light-years across and is 1,000 light-years thick. Within this colossal spiral structure, scientists estimate there are roughly 200 billion stars and an incredible 3.2 trillion planets, each representing a potential living world of its own. Yet, as vast as our home galaxy is, it represents only a microscopic fraction of the grander cosmos. According to NASA, the observable universe is home to an estimated 2 trillion galaxies, each containing its own mind-boggling collection of stars and planetary systems. This staggering realization shifts our understanding of existence, illustrating that while our corner of space is incredibly specific, we are part of an impossibly vast and beautifully chaotic tapestry that we have only begun to explore. source: National Aeronautics and Space Administration. (2019). Our Milky Way Galaxy: How Big, How Old, How Fast? NASA Science.$