Expansion of the Universe
The universe is vast and constantly expanding. But how do we know this? The answer lies in the evidence provided by Redshift.
The phenomenon of Redshift can be understood with an experiment. When starlight passes through a prism, it splits into a spectrum. Scientists studying this spectrum observed dark lines where specific colors were missing.
These dark lines are absorption lines caused by elements in the star that absorb specific colors of light.
Scientists observed that these absorption lines shift toward the red end of the spectrum, resulting in Redshift.
Astronomers discovered that almost every galaxy in the universe shows Redshift, indicating that they’re all moving away from us.
Edwin Hubble noticed something even more incredible: the farther a galaxy is from us, the faster it’s moving away. This relationship is now called Hubble’s Law.
Imagine a deflated balloon with dots drawn on its surface. As it inflates, the dots move farther apart. Similarly, the universe is stretching, and the space between galaxies increases.
However, unlike the dots on the balloon, galaxies themselves are not expanding. Instead, the space between them is stretching.
The universe is vast and constantly expanding. But how do we know this? The answer lies in the evidence provided by Redshift.
The phenomenon of Redshift can be understood with an experiment. When starlight passes through a prism, it splits into a spectrum. Scientists studying this spectrum observed dark lines where specific colors were missing.
These dark lines are absorption lines caused by elements in the star that absorb specific colors of light.
Scientists observed that these absorption lines shift toward the red end of the spectrum, resulting in Redshift.
Astronomers discovered that almost every galaxy in the universe shows Redshift, indicating that they’re all moving away from us.
Edwin Hubble noticed something even more incredible: the farther a galaxy is from us, the faster it’s moving away. This relationship is now called Hubble’s Law.
Imagine a deflated balloon with dots drawn on its surface. As it inflates, the dots move farther apart. Similarly, the universe is stretching, and the space between galaxies increases.
However, unlike the dots on the balloon, galaxies themselves are not expanding. Instead, the space between them is stretching.
The universe is vast and constantly expanding. But how do we know this? The answer lies in the evidence provided by Redshift.
The phenomenon of Redshift can be understood with an experiment. When starlight passes through a prism, it splits into a spectrum. Scientists studying this spectrum observed dark lines where specific colors were missing.
These dark lines are absorption lines caused by elements in the star that absorb specific colors of light.
Scientists observed that these absorption lines shift toward the red end of the spectrum, resulting in Redshift.
Astronomers discovered that almost every galaxy in the universe shows Redshift, indicating that they’re all moving away from us.
Edwin Hubble noticed something even more incredible: the farther a galaxy is from us, the faster it’s moving away. This relationship is now called Hubble’s Law.
Imagine a deflated balloon with dots drawn on its surface. As it inflates, the dots move farther apart. Similarly, the universe is stretching, and the space between galaxies increases.
However, unlike the dots on the balloon, galaxies themselves are not expanding. Instead, the space between them is stretching.
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