The universe is expanding at an accelerating rate—or is it?

[mercurial]

phy.so/396267522

 

[saor]

k@k lazy post.

Five years ago, the Nobel Prize in Physics was awarded to three astronomers for their discovery, in the late 1990s, that the universe is expanding at an accelerating pace.

Their conclusions were based on analysis of Type Ia supernovae - the spectacular thermonuclear explosion of dying stars - picked up by the Hubble space telescope and large ground-based telescopes. It led to the widespread acceptance of the idea that the universe is dominated by a mysterious substance named 'dark energy' that drives this accelerating expansion.

Now, a team of scientists led by Professor Subir Sarkar of Oxford University's Department of Physics has cast doubt on this standard cosmological concept. Making use of a vastly increased data set - a catalogue of 740 Type Ia supernovae, more than ten times the original sample size - the researchers have found that the evidence for acceleration may be flimsier than previously thought, with the data being consistent with a constant rate of expansion.

http://phys.org/news/2016-10-universe-rateor.html

 

[mercurial]

k@k lazy post.


http://phys.org/news/2016-10-universe-rateor.html

I'm on my phone. Thanks.

 

[etienne_marais]

And so it goes, first this way, then that, then back again or complete overhaul.

 

[dudewotevr]

And so it goes, first this way, then that, then back again or complete overhaul.

No dumdum, It's still expanding. The question of at what rate is possibly in question.

 

[etienne_marais]

No dumdum, It's still expanding. The question of at what rate is possibly in question.

No pawpaw, the rate of expansion is now considered constant as opposed to expanding at an ever increasing velocity, so back to first derivative instead of second.

 

[dudewotevr]

No pawpaw, the rate of expansion is now considered constant as opposed to expanding at an ever increasing velocity, so back to first derivative instead of second.

So you agree with me that either way it is still expanding, yet in your first post you say: "And so it goes, first this way, then that, then back again or complete overhaul." That appears to be quite an exaggerated and dishonest representation of the situation.