Science
Related: About this forumSomething Is Not Quite Right In the Universe, Ultraprecise New Measurement Reveals
By Mara Johnson-Groh, Live Science Contributor | February 8, 2019 07:13am ET
Something isn't quite right in the universe. At least based on everything physicists know so far. Stars, galaxies, black holes and all the other celestial objects are hurtling away from each other ever faster over time. Past measurements in our local neighborhood of the universe find that the universe is exploding outward faster than it was in the beginning. That shouldn't be the case, based on scientists' best descriptor of the universe.
If their measurements of a value known as the Hubble Constant are correct, it means that the current model is missing crucial new physics, such as unaccounted-for fundamental particles, or something strange going on with the mysterious substance known as dark energy.[5 Elusive Particles Beyond the Higgs | Quantum Physics]
Now, in a new study, published Jan. 22 in the journal Monthly Notices of the Royal Astronomical Society, scientists have measured the Hubble Constant in an entirely new way, confirming that, indeed, the universe is expanding faster now than it was in its early days.
"Something interesting going on"
To explain how the universe went from a tiny, hot, dense speck of soupy plasma to the vast expanse we see today, scientists have proposed what's known as the Lambda Cold Dark Matter (LCDM) model. The model puts constraints on the properties of dark matter, a kind of matter that exerts gravitational pull but emits no light, and dark energy, which seems to oppose gravity. LCDM can successfully reproduce the structure of galaxies and the cosmic microwave background the universe's first light as well as the amount of hydrogen and helium in the universe. But it can't explain why the universe is expanding faster now than it did early on. [Big Bang to Civilization: 10 Amazing Origin Events]
More:
https://www.livescience.com/64724-hubble-constant-measured-precisely-with-quasars.html
NRaleighLiberal
(60,015 posts)SWBTATTReg
(22,143 posts)Blue Owl
(50,427 posts)Wounded Bear
(58,670 posts)that Trump is the center of the universe. He might think so, but I don't.
Loki Liesmith
(4,602 posts)SWBTATTReg
(22,143 posts)I'm going to bookmark and read more closely, this is an area of interest to me, especially as to why it is contrary to what the experts expected, even Einstein (although from what I understand, he was somewhat unsure about the constant). Considering that we're just into the first plus century of understanding the universe, I wouldn't be surprised if some key element(s) were not factored in yet (still unknown), or calculated into existing equations to come up w/ the anticipated or what the theories predict what the values should be. How exciting!
Response to Judi Lynn (Original post)
Blue Owl This message was self-deleted by its author.
LakeSuperiorView
(1,533 posts)Chichiri
(4,667 posts)"Last Contact" by Stephen Baxter.
http://web.archive.org/web/20080725045740/http://www.solarisbooks.com/books/newbookscifi/last-contact.asp
keithbvadu2
(36,829 posts)New theories of understanding the universe
They keep coming up with newer, more complicated theories about the universe.
Hell, I never understood the old, simplistic, now discredited, theories.