“I sparked a movement while I was bored at 2 a.m,” Roberts told the L.A. Times. https://www.nj.com/entertainment/2019/09/yes-people-actually-showed-up-to-storm-area-51.html
In July 1947 a rancher by the name of Mac Brazel found strange metal strewn over his land in New Mexico. Brazel took this debris to the authorities in Roswell. The commanding officer at the time Colonel Blanchard was also intrigued and he ordered an investigation. After collecting the shrapnel and other evidence off of Brazel’s property, the first Army command at Roswell issued a press release stating that they had recovered some type of “flying disk”
Area 51 is one of the most widely recognized secrets in the United States. While only a select few know for sure what happens in this facility, many believe that there are supernatural events and government tests that would change the way we feel about the universe. Will Area 51 conspiracy theories last forever or will the United States government eventually come clean about everything that happens behind the barbed wired fences?
The universe cannot be younger than the objects contained inside of it. By determining the ages of the oldest stars, scientists are able to put a limit on the age.
The life cycle of a star is based on its mass. More massive stars burn faster than their lower-mass siblings. A star 10 times as massive as the sun will burn through its fuel supply in 20 million years, while a star with half the sun's mass will last more than 20 billion years. The mass also affects the brightness, or luminosity, of a star; more massive stars are brighter. [Related: The Brightest Stars: Luminosity & Magnitude] Known as Population III stars, the first stars were massive and short-lived. They contained only hydrogen and helium, but through fusion began to create the elements that would help to build the next generation of stars. Scientists have been hunting for traces of the first stars for decades.
"Those stars were the ones that formed the first heavy atoms that ultimately allowed us to be here," David Sobral, an astronomer from the University of Lisbon in Portugal, said in a statement. Sobral was part of a team that identified a bright galaxy with evidence of Population III stars.
"The detection of dust in the early universe provides new information on when the first supernovae exploded and hence the time when the first hot stars bathed the universe in light," ESO officials said in a statement. "Determining the timing of this 'cosmic dawn' is one of the holy grails of modern astronomy, and it can be indirectly probed through the study of early interstellar dust."
Early stars aren't the only way to place limits on the age of the universe. Dense collections of stars known as globular clusters have similar characteristics. The oldest known globular clusters have stars with ages that appear to be between 11 and 14 billion years old. The wide range comes from problems in pinpointing the distances to the clusters, which affects estimates of brightness and thus mass. If the cluster is farther away than scientists have measured, the stars would be brighter, thus more massive, thus younger than calculated.https://anchor.fm/app Support this podcast: https://anchor.fm/theadamparadox/support
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