Hubble image archive
Changes in the Rate of Expansion over Time
This diagram reveals changes in the rate of expansion since the universe's birth 15 billion years ago. The more shalow the curve, the faster the rate of expansion. The curve changes noticeably about 7.5 billion years ago, when objects in the universe began flying apart as a faste...
- Date
- Jan 1, 2001
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2001-09-1037-image
This diagram reveals changes in the rate of expansion since the universe's birth 15 billion years ago. The more shalow the curve, the faster the rate of expansion. The curve changes noticeably about 7.5 billion years ago, when objects in the universe began flying apart as a faster rate. Astronomers theorize that the faster expansion rate is due to a mysterious, dark force that is pulling galaxies apart.
Credits
Ann Feild (STScI)
Source
Image and source material are credited to the official mission archive linked below.
View on NASA.gov