The Universe Expansion
The universe is immeasurable in size. And for all we know, it’s expanding indefinitely into limitless bounds.
The universe holds a mammoth collection of galaxies. We know this because we observe them using the Kepler Telescope.
Each galaxy is formed with stars, planets and other soar remnant. On the grand scale of things, Earth is a small speck.
Even the Milky Way where we reside is tiny in comparison.
The Farthest Viewable Galaxy
By pushing NASA’s Hubble Space Telescope to its limits, astronomers has shattered the cosmic distance record by measuring the farthest galaxy ever seen in the universe.
This surprisingly bright infant galaxy, named GN-z11, is seen as it was 13.4 billion years in the past.
It’s just 400 million years after the Big Bang.
Astronomers also use the NASA Spitzer Space Telescope to greatly improve the cosmic distance ladder used to measure the expansion rate of the universe, its size and age.