Blocks of empty space within the known universe

AI Thread Summary
The discussion focuses on "blocks of empty space" in the universe, defined as areas devoid of matter and light. Participants clarify that while certain regions, like NGC 1999, appear empty, they may still contain minimal amounts of gas and light, indicating they are not completely void. The concept of these empty spaces is linked to observations made with advanced telescopes, which reveal that these areas are less dense compared to their surroundings. The conversation emphasizes the distinction between perceived emptiness and actual voids in space. Overall, the topic invites further exploration of the nature and significance of these regions in the universe.
eksxxx
Messages
3
Reaction score
0
Please share the information you have about this topic, post only valid articles and research.

By "blocks of empty space within the known universe" I mean blocks of space that are free of both matter and light i.e. there is no light or matter within that space;empty and dark. And the known universe to be the space from which we still receive light.

If you need more information please visit these links:
http://en.wikipedia.org/wiki/NGC_1999
http://www.msnbc.msn.com/id/37088640/ns/technology_and_science-space/

your contributions will be appreciated!
 
Astronomy news on Phys.org
Those links refer to a "hole" in a cloud of dust. That doesn't imply that it is literrally completely void of all things, including dust and gas and light, but merely that it is a sudden dropoff of density in the middle of the cloud. There is still light and small amounts of gas inside the hole.
 
Drakkith said:
... Aided by the ground-based Mayall (Kitt Peak) and Magellan telescopes, it was determined that the patch looks black not because it is an extremely dense pocket of gas, but because it is truly empty...

Thats from Wikipedia NGC 1999. There might be something but it should be insignificant.
 
eksxxx said:
Thats from Wikipedia NGC 1999. There might be something but it should be insignificant.

Yep. There is still something there, but not alot. At least compared to the cloud surrounding it.
 

Thread 'Does it make sense to build new radio telescopes?'

TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
View full post »
Thread 'Could gamma-ray bursts have an intragalactic origin?'

Thread 'Could gamma-ray bursts have an intragalactic origin?'

This is indirectly evidenced by a map of the distribution of gamma-ray bursts in the night sky, made in the form of an elongated globe. And also the weakening of gamma radiation by the disk and the center of the Milky Way, which leads to anisotropy in the possibilities of observing gamma-ray bursts. My line of reasoning is as follows: 1. Gamma radiation should be absorbed to some extent by dust and other components of the interstellar medium. As a result, with an extragalactic origin, fewer...
View full post »

Thread 'Can the signal WOW be explained by the maser effect?'

This hypothesis of scientists about the origin of the mysterious signal WOW seems plausible only on a superficial examination. In fact, such a strong coherent radiation requires a powerful initiating factor, and the hydrogen atoms in the cloud themselves must be in an overexcited state in order to respond instantly. If the density of the initiating radiation is insufficient, then the atoms of the cloud will not receive it at once, some will receive it earlier, and some later. But then there...
View full post »

Similar threads

I Can matter come into existence in empty space?
Replies
5
Views
1K
Question about the universe and a black hole
Replies
9
Views
3K
Were the First Stars in the Universe Fast Spinners?
Replies
2
Views
2K
Is Dark Matter Filling the Universe's Voids?
Replies
30
Views
5K
I Expansion of space & expansion of matter within space
Replies
17
Views
2K
B Questions regarding expansion, the vacuum in space, and black holes
Replies
6
Views
2K
I Equilibrium of Universe: Earth vs. Black Hole
Replies
7
Views
2K
I Positions of distant supernova explosions false?
Replies
31
Views
3K
B What is the relationship between expansion and curvature?
Replies
20
Views
3K
Theories and questions on the expansion of the universe
Replies
15
Views
3K

Hot Threads

Recent Insights

Back
Top