Astronomers discover a 'magnifying glass' in space that acts like a time machine
By Catholic Online (NEWS CONSORTIUM)
8/1/2014 (2 years ago)
Catholic Online (www.catholic.org)
Astronomers have discovered a virtual magnifying glass in space that allows them to look farther back in time than they normally can, to an age when the universe was young and contained less mysterious dark matter.
Images which reveal the galaxies in question. They may look like pixels, however by examining light in fine detail with sensitive instruments astronomers can reveal a lot of basic knowledge about the objects.
LOS ANGELES, CA (Catholic Online) - Astronomers Kennith Wong and Sherry Suyu of Academic Sincia Institute of Astronomy in Taiwan have discovered a massive, distant elliptical galaxy in Hubble Space telescope images. By chance, behind that galaxy is another one, far older and more ancient that what we normally can see, even with the most sensitive instruments. We are able to see the galaxy behind the giant elliptical because the elliptical in the foreground acts as a magnifying glass.
Massive objects in space can distort the light from objects behind them, allowing them to serve as magnifying glasses. This effect is known as gravitational lensing and it was proposed theoretically decades before it was observed.
St. Dominic de Guzman, patron saint of astronomers.
Today, astronomers use this phenomenon to peer at distant objects deep in space, but there's a catch: we can't move the magnifying glass, so we're stuck seeing whatever we can see through the lensing effect and nothing more.
Still, objects like the massive elliptical galaxy are key to making observations of the early universe.
Behind the elliptical is a small spiral galaxy which is just forming -or at least it was just forming about 10.7 billion years ago. Another curious feature of space is that it takes time for light to travel. In this case, the light from the forming spiral took 10.7 billion years to reach observers on Earth. Since the universe formed about 13.7 billion years ago, the galaxy which astronomers see appears as it did not long after the universe formed.
These observations are important because they provide information about how the universe may have been formed.
The most interesting observation is that the ancient, small spiral does not have the same quantity of dark matter as modern galaxies do. This suggests that dark matter forms and accumulates over time. Dark matter is an unknown form of mass which is thought to bind entire galaxies together by gravity. Scientists only know what dark matter does, but not what it is.
Why is the ancient spiral deficient in dark matter compared to modern galaxies? It's a mystery that requires more research.
Copyright 2017 - Distributed by THE CALIFORNIA NETWORK
Pope Francis Prayer Intentions for JULY 2017
Lapsed Christians. That our brothers and sisters who have strayed from the faith, through our prayer and witness to the Gospel, may rediscover the merciful closeness of the Lord and the beauty of the Christian life.
Physicists have announced the discovery of the 'Angel Particle,' a subatomic particle that is both matter and anti-matter. The particles ... continue reading
Facebook censored over a dozen popular Catholic pages on Monday, including several with millions of followers. No explanation was given for ... continue reading
Could you survive in a disaster? Take our quiz and find out if you are likely to survive a disaster or not Watch
Could you survive a disaster? The BBC asked survival experts what people should do to survive a disaster. Here's one thing experts ... continue reading
Russia launching high-tech 'Tower of Babel' into space, including pyramid that will shine over the world Watch
The Russians are about to launch a high-tech Tower of Babel into space, which among other objects will deliver a pyramid into orbit that ... continue reading
WAIT, WHAT DID YOU SAY? Robots predict they will take over in 20-30 years during public talk between two AI programs Watch
Robots will be as intelligent as humans in as little as three years, one robotics mastermind has predicted. To underscore his point, he ... continue reading
by Catholic Online
- Oh no! Is El Nino coming back to California?
- Daily Reading for Wednesday, July 26th, 2017 HD Video
- Pope Francis is set for something big, but what is it? HD Video
- Will We Use Our Ears To Hear?
- Daily Readings for Tuesday, July 25, 2017
- Scientists discover elusive 'Angel Particles' are real
- St. James the Greater: Saint of the Day for Tuesday, July 25, 2017
- Statues of the Virgin Mary triumphantly return to Iraq, after defeat of ISIS HD
- Daily Reading for Tuesday, July 25th, 2017 HD
- Daily Reading for Monday, July 24th, 2017 HD
- Daily Reading for Sunday, July 23rd, 2017 HD