Current Theory of Expansion of Space: What Do Scientists Think?

Click For Summary
SUMMARY

The current theory of the expansion of space posits that the universe is indeed expanding, meaning that the distances between galaxies are increasing over time. This expansion does not imply that objects within the universe, such as humans or planets, are physically expanding; rather, it is the space between them that is stretching. The latest issue of Scientific American provides an accessible overview of this concept, making it easier for the general public to grasp the complexities of cosmic expansion.

PREREQUISITES
  • Understanding of general relativity
  • Familiarity with cosmological principles
  • Basic knowledge of astrophysics
  • Awareness of current scientific literature, such as Scientific American
NEXT STEPS
  • Read the latest issue of Scientific American for insights on cosmic expansion
  • Explore the implications of general relativity on cosmic structures
  • Investigate the role of dark energy in the universe's expansion
  • Study the observable effects of cosmic expansion on distant galaxies
USEFUL FOR

Astronomers, astrophysicists, science communicators, and anyone interested in understanding the dynamics of the universe's expansion.

Mark Walker
Messages
10
Reaction score
0
Does anyone know the current theory for the expansion of space?

I was thinking about this the other day. Do scientists think the universe is expanding as in extending in size? Because if it's expanding, won't everything expand with it? Including us.
 
Astronomy news on Phys.org
The latest issue of Scientific American has a discussion of this in laymen's terms which looks really nice (i have just glanced over it at present).
Some of the more knowledgeable members at PF can provide you with more technical info.
 

Similar threads

Undergrad How Does the Balloon Analogy Explain the Expansion of the Universe?
  • · Replies 5 ·
Replies
5
Views
3K
High School When light arrives at the end of space, what happens?
  • · Replies 49 ·
2
Replies
49
Views
8K
Undergrad On Hubble's constant, the expansion of the Universe and vacuum energy
  • · Replies 6 ·
Replies
6
Views
3K
High School The geometry of the expansion of space
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Is the Expansion of Space/Time a Result of Object Motion or Framework Growth?
  • · Replies 3 ·
Replies
3
Views
2K
High School Is There a Reference Point for the Expansion of the Universe?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Infinity vs Expansion: Is an Infinite Universe Compatible with Expansion?
  • · Replies 17 ·
Replies
17
Views
3K
High School How Do Radars in Space Prevent Signal Dispersion and Maintain Target Accuracy?
  • · Replies 10 ·
Replies
10
Views
3K
High School Distance of Stars / Size of the Universe calculation
  • · Replies 6 ·
Replies
6
Views
3K
High School Standard candles in a stretching fabric of space
  • · Replies 3 ·
Replies
3
Views
2K