Latest in Science

Image credit:

Supernovae suggest the universe is growing slower than expected

Jon Fingas, @jonfingas
April 13, 2015
Share
Tweet
Share

Sponsored Links

Don't look now, but what you know about the universe's growth might have been turned on its ear. University of Arizona scientists have learned that a certain type of supernova (Ia) isn't the reliable measuring stick for universe expansion that previous data would suggest. By comparing optical and ultraviolet images (such as in the hybrid image you see above), they found that older, farther exploding stars aren't behaving in the same way as newer ones closer to our own star. In other words, the ancient supernovae aren't necessarily as distant as you'd think -- and if they aren't, the universe isn't growing as quickly as textbooks say.

The tricky bit is finding out just how inaccurate our existing model might be. It'll require combing through legions of optical and UV images to get a clearer answer. When that happens, though, researchers will have a better understanding of what's happened since the Big Bang, including the amount of dark energy that exists in the cosmos.

[Image credit: NASA/Swift]

All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission.
Comment
Comments
Share
Tweet
Share

Popular on Engadget

The 2020 Engadget Holiday Gift Guide

The 2020 Engadget Holiday Gift Guide

View
The best TV deals we could find for Black Friday

The best TV deals we could find for Black Friday

View
'Mechwarrior 5' will arrive on Xbox in spring 2021

'Mechwarrior 5' will arrive on Xbox in spring 2021

View
The best Black Friday tech deals that are already available

The best Black Friday tech deals that are already available

View
Apple's Intel-powered MacBook Air falls to $799 ahead of Black Friday

Apple's Intel-powered MacBook Air falls to $799 ahead of Black Friday

View

From around the web

Page 1Page 1ear iconeye iconFill 23text filevr