|Dry as a bone?|
|What lurks behind?|
|A tiny part of the sky ...|
Dark energy is an explanation if there is something to explain. What if there isn't? Consider that there might have been a serious measurement error. So, anyway, suggests an article in Physics World: "Supernovae analysis finds scant evidence for dark energy." The takeaway:
The difference between the trio's study and previous analyses is how variations in supernovae light are dealt with. While all type 1a supernovae are nearly identical, astrophysicists know that there are important differences that must be accounted for. Sarkar and colleagues argue that the statistical techniques adopted for previous studies are too simple and not appropriate for the growing set of observational data.
One study doesn't disprove accelerating expansion and the dark-energy concept ... but follow-up studies are surely in order.
This being my first post of 2017, I think it's appropriate to end with, from Sky and Telescope, "Top Astronomy News Stories of 2016." Because astronomy had a heck of a year!
|Wave bye-bye ...|
Dark Secret is a more advanced observatory detecting gravitational waves that forewarn of two in-spiraling neutron stars similarly about to collide -- and unleash havoc. That's merely a grand coincidence :-) )