What is a Red galaxy?
referring to astronomy and space exploration
The universe is expanding, so things are moving away from each other. The farther apart, the higher the relative speed, in general. The light from a galaxy that is moving away from you is shifted toward longer wavelengths, so visible light gets shifted toward the infrared. So galaxies far away appear more red than they would up close. Red galaxies.
It is known as Unltra-red galaxies. Unltra-red galaxies may be cosmic 'missing link' Space telescope sees them at the for reaches of the universe. The astronomers spotted four remarkably red galaxies near 13 billion light - years from Earth. Researchers says, the four galaxies are grouped together and appear to be physically associated, rather than constituting a chance alignment of like objects. Astronomers says, "In a sense, these galaxies might be a 'missing link' in galatic evolution".
There are three main reasons why a galaxy may appear red, researchers said, First it may be extremely dusty. Second, it could contain many old, red stars. Or third, the galaxy may be extremely distant, in which case the expantion of the universe has stretched its light to very long (and very red) wavelengths.
by Anjili 6 years ago
Our galaxy will collide with another one in 4 billion years time, says NASA. What do you think?
by Justin McMarshall 7 years ago
What is your view on creation?There is a lot of speculation on just what might have casued the the universe and everything else contained in the heavens. What is your view. Please be a specific as possible. I would love a professional opinion.
by Cheri Bermudez 7 years ago
Do you believe life exists in the universe (other than on Earth)?
by Alexander A. Villarasa 5 years ago
Scientists of all stripes, but most specifically physicists (astrophysicists, theoretical physycists, and the ocassional metaphysicists) have posited that based on the perplexities and complexities of quantum mechanics, the possibility of not just one, but multiple universes...
by Paula 2 years ago
What is the age of the universe?What are your thoughts on the age of the universe? Why do you think it is as old as you think it is. Perhaps it is a range of time. To add, what is your worldview religion?
by jerami 7 years ago
Having a wondering about it moment. I don't have an answer. That black hole at the center of our universe may not exert its pull upon the earth as much as it does on our sun. Our sun revolves around it. So it does pull upon the sun. Would...
Copyright © 2018 HubPages Inc. and respective owners. Other product and company names shown may be trademarks of their respective owners. HubPages® is a registered Service Mark of HubPages, Inc. HubPages and Hubbers (authors) may earn revenue on this page based on affiliate relationships and advertisements with partners including Amazon, Google, and others.
|HubPages Device ID||This is used to identify particular browsers or devices when the access the service, and is used for security reasons.|
|Login||This is necessary to sign in to the HubPages Service.|
|HubPages Traffic Pixel||This is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.|
|Remarketing Pixels||We may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.|
|Conversion Tracking Pixels||We may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.|