A Time-lapse Of SpaceX’s Falcon 9 Rocket Launch Over California. Many People Thought It Was A UFO….

CHOOSE YOUR FIGHTER

Cosmology’s Biggest Conundrum Is A Clue, Not A Controversy

“This is not some fringe idea, where a few contrarian scientists are overemphasizing a small difference in the data. If both groups are correct — and no one can find a flaw in what either one has done — it might be the first clue we have in taking our next great leap in understanding the Universe. Nobel Laureate Adam Riess, perhaps the most prominent figure presently researching the cosmic distance ladder, was kind enough to record a podcast with me, discussing exactly what all of this might mean for the future of cosmology.

It’s possible that somewhere along the way, we have made a mistake somewhere. It’s possible that when we identify it, everything will fall into place just as it should, and there won’t be a controversy or a conundrum any longer. But it’s also possible that the mistake lies in our assumptions about the simplicity of the Universe, and that this discrepancy will pave the way to a deeper understanding of our fundamental cosmic truths.”

In science, if you want to know some property of the Universe, you need to devise a measurement or set of measurements you can make to reveal the quantitative answer. When it comes to the expanding Universe, we have many different methods of measuring light that fall into two independent classes: using the imprint of an early relic and using the cosmic distance ladder. These two techniques each give solid results that are mutually inconsistent: the distance ladder teams find results that are higher than the early relic teams by about 9%. Since the errors are only about 1-2% on each measurements, this has been dubbed cosmology’s biggest controversy.

But perhaps it’s not about “who is right,” but rather about “what is the Universe doing?” Perhaps it’s a clue, not a controversy. Come learn about the cutting-edge science behind this fascinating and unexpected result.

On September 9th 1995, the legendary Playstation console launched in North America!

A telephoto view of the Orion nebula and surrounding region over a Saskatchewan tree [OC]

Productive Things That Aren’t Studying

washing the dishes

making your bed

tidying your book/dvd shelf/shelves

cleaning the cupboard/wardrobe

reading

sleeping

writing a blog

planning your month/week/day

replying to messages or asks

responding to emails

sorting through letters/mail

clearing your email inbox

organising stationery

clean your sinks

clean your toilets

pet your pet

sort through old clothes

give to charity

go on a walk

go on a run

clean down any surfaces

work out

meal prep

get rid of empty shampoo bottles from the shower

clean out old food from the cupboard/fridge

empty out your school bag

call your parent

unfriend/unfollow people you no longer interact with

watch a TEDTalk

empty the bins/trash

clean the mirrors in your house

hug your pet

wash some clothes

buy any birthday cards/presents that you need to

reply to any old texts

make a tumblr post on productive things that aren’t studying

Art of Reignited - Misty Bog

2019 April 28

All of Mercury Image Credit: NASA/JHU Applied Physics Lab/Carnegie Inst. Washington

Explanation: Only six years ago, the entire surface of planet Mercury was finally mapped. Detailed observations of the innermost planet’s surprising crust began when the robotic have been ongoing since the robotic MESSENGER spacecraft first passed Mercury in 2008 and continued until its controlled crash landing in 2015. Previously, much of the Mercury’s surface was unknown as it is too far for Earth-bound telescopes to see clearly, while the Mariner 10 flybys in the 1970s observed only about half. The featured video is a compilation of thousands of images of Mercury rendered in exaggerated colors to better contrast different surface features. Visible on the rotating world are rays emanating from a northern impact that stretch across much of the planet, while about half-way through the video the light colored Caloris Basin rotates into view, a northern ancient impact feature that filled with lava. Recent analysis of MESSENGER data indicates that Mercury has a solid inner core.

∞ Source: apod.nasa.gov/apod/ap190428.html