HANG ON TOTO! Astronomers calculate the speed of the Universe's expansion
FREE Catholic Classes
By Catholic Online (NEWS CONSORTIUM)
4/8/2014 (5 years ago)
Catholic Online (https://www.catholic.org)
Hold on to your hat, Toto, we're about to leave Kansas. Astronomers say they have calculated the expansion rate of the universe and their discovery is very surprising.
Hang on! The universe is expanding at 1 percent per 44 million years, which is fast if you consider the size of the universe is at least 46 billion years in radius!
LOS ANGELES, CA (Catholic Online) - Astronomers have long been interested in measuring the expansion rate of the universe. In the 1920's, astronomer Edwin Hubble examined the light from hundreds of galaxies only to notice the light was "red shifted." By applying basic physics, it became clear that virtually everything in the universe was moving away from everything else.
A good example of Hubble's discovery would involve making dots on a deflated balloon, then blowing it up. As the balloon expands in size, the dots move farther apart.
Let's give a Bible to every person who thirsts for the Word.
Originally, it was long believed that the universe had been blown outward by the Big Bang, then the expansion would slow over time under the constant pull of gravity. However, recent discoveries have disproved this, showing that the universe is not only expanding, but that the expansion is accelerating.
We live in a universe that is expanding ever more rapidly. In fact, the universe is expanding at a rate of 1 percent per every 44 million years and accelerating. This is pretty fast if you consider the size of the universe is at least 46 billion years in radius. (No, the universe is not 13.7 billion LY across, it is thought to be much larger than what we can observe.)
It's unclear just what, if anything, the universe is expanding into, although cosmologists generally do not speculate on this, instead referring to universe to the surface of a sphere where there is no edge or end.
Now, new research has complicated the current understanding of physics, suggesting that the universe initially expanded rapidly, then slowed down, and is now once again accelerating. This defies our basic experience, however we should recall that we are dealing with physical extremes as opposed to the everyday reality we experience on Earth.
Scientists using the Baryon Oscillation Spectroscopic Survey telescope in New Mexico have concluded that yes, the universe did expand rapidly following the Big Bang over 13.7 billion years ago, but then it decelerated. That deceleration is blamed on mysterious "dark matter" which has only been measured by its gravitational influence. Dark matter has never been directly observed. It is uncertain if this matter, which actually makes most of the mass of the universe, is made of subatomic particles or what.
Opposite dark matter is dark energy, a strange force which appears to be overwhelming dark matter and causing the universe's expansion to accelerate. The universe began accelerating some six billion years ago, about a billion years before the formation of the Sun and our solar system.
So scientists have made observations that run counter to intuition and require "dark" matter and energy to explain.
It is obvious that the current model of physics, while very reliable and predictable at small scales, is somehow incomplete at the extremes. This is why so much work is being put into particle physics and the study of theories that might explain what is happening at those extremes.
Although scientists are baffled at the latest discovery, they're not too surprised. They also do not doubt the standard model of physics, insofar as the Big Bang best describes the initial formation of the universe. However, this discovery reveals that there's still a lot of work to be done before we can declare our understanding of physics and the laws that govern the universe complete.
Copyright 2019 - Distributed by THE CALIFORNIA NETWORK
Next month, the United Kingdom will roll out new online restrictions in an attempt to protect children under the age of 18 from accessing ... continue reading
Facebook stock plunged yesterday on a poor report to Wall Street. The company's stock fell almost 20 percent, wiping out almost $150 ... continue reading
Someone in China has just used blockchain technology to evade censorship, and the implications are staggering. Just as the printing press ... continue reading
The longest eclipse of the 21st century will occur on the night of July 28, 2018. The eclipse will last for a minute shy of 4 hours, and ... continue reading
Rich people stay rich by figuring out before the rest of us what will happen next. This is why futurists often look at what rich people are ... continue reading
by Catholic Online
- South Asia floods: 'Everything is coming to a complete standstill'
- Daily Reading for Tuesday, July 23rd, 2019 HD Video
- St. Mary Magdalene: Saint of the Day for Monday, July 22, 2019
- Influencers in a Pro-life Vocation
- Making a Difference: Lessons for Earth 50 years after first moon landing
- Daily Readings for Monday, July 22, 2019
- Daily Reading for Monday, July 22nd, 2019 HD Video
- Prayer Requests Live for Friday, July 19th 2019 HD
- Mary, the Blessed Virgin HD
- Daily Reading for Sunday, July 21st, 2019 HD
- Prayer Requests Live for Thursday, July 18th 2019 HD
Learn about Catholic world
Inform - Inspire - Ignite
Catholic Online Saints
Your saints explained
Catholic Online Prayers
Prayers for every need
Catholic Online Bible
Complete bible online
Catholic Online News
Your news Catholic eye
Today's bible reading
Products and services we offer
Catholic Online Shopping
Catholic medals, gifts & books
Advertise on Catholic Online
Your ads on catholic.org
Catholic Online Email
Email with Catholic feel
Learn the Catholic way
Catholic Online School
Free Catholic education for all
K-12 & Adult Education Classes
Support Free Education
Tax deductible support Free education
Copyright 2019 Catholic Online. All materials contained on this site, whether written, audible or visual are the exclusive property of Catholic Online and are protected under U.S. and International copyright laws, © Copyright 2019 Catholic Online. Any unauthorized use, without prior written consent of Catholic Online is strictly forbidden and prohibited.
Catholic Online is a Project of Your Catholic Voice Foundation, a Not-for-Profit Corporation. Your Catholic Voice Foundation has been granted a recognition of tax exemption under Section 501(c)(3) of the Internal Revenue Code. Federal Tax Identification Number: 81-0596847. Your gift is tax-deductible as allowed by law.