Day: July 26, 2020
A Flight through the Hubble Ultra Deep Field
What would it look like to fly through the distant universe? To find out, a team of astronomers estimated the relative distances to over 5,000 galaxies in one of the most distant fields of galaxies ever imaged: the Hubble Ultra Deep Field (HUDF). Because it takes light a long time to cross the universe, most galaxies visible in the featured video are seen when the universe was only a fraction of its current age, were still forming, and have unusual shapes when compared to modern galaxies. No mature looking spiral galaxies such as our Milky Way or the Andromeda galaxy yet exist. Toward the end of the video the virtual observer flies past the farthest galaxies in the HUDF field, recorded to have a redshift past 8. This early class of low luminosity galaxies likely contained energetic stars emitting light that transformed much of the remaining normal matter in the universe from a cold gas to a hot ionized plasma. via NASA https://ift.tt/3fZMmc8
Wikipedia article of the day for July 26, 2020
Wikipedia article of the day is Carlos Castillo Armas. Check it out: https://ift.tt/1ZAyWbY Summary: Carlos Castillo Armas (November 4, 1914 – July 26, 1957) was a military officer and the 28th president of Guatemala. He came to power in a 1954 coup d’état backed by the US Central Intelligence Agency that overthrew the democratically elected President Jacobo Árbenz, and consolidated his position in an October 1954 election in which he was the only candidate. A member of the right-wing National Liberation Movement party, he was also the first of a series of authoritarian rulers in Guatemala who were close allies of the United States. Under Castillo Armas, the reforms of the Guatemalan Revolution were largely undone. Land was confiscated from small farmers and returned to large landowners, and thousands of people were arrested, tortured, or killed under suspicion of being communists. In 1957 Castillo Armas was assassinated by a presidential guard. His policies sparked a series of leftist insurgencies culminating in the Guatemalan Civil War, which lasted from 1960 to 1996.
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