Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Astrophysicists Claim They Found a 'Galaxy Without Dark Matter'
Live Science ^ | March 28, 2018 01:00pm ET | Rafi Letzter

Posted on 03/28/2018 10:45:44 PM PDT by BenLurkin

Here's a problem: The universe acts like it's a lot more massive than it looks.

Take galaxies, those giant, spinning masses of stars. The laws of motion and gravity tell us how fast these objects should turn given their bulk. But observations through telescopes show them spinning way faster than we'd expect, as if they were actually much more massive than the stars we can see indicate.

Astrophysicists have come up with two main solutions to this problem. Either there's a lot of mass out there in the universe that we can't detect directly, mass scientists call dark matter, or there's no dark matter out there, but there is something missing from our laws of gravity and motion. Researchers call the second proposed solution modified Newtonian dynamics (MOND), which suggests that if the laws are properly tweaked, the universe would make sense without dark matter.

So NGC 1052–DF2 is a head-scratcher whether you lean toward dark matter or toward MOND. But physicists contacted by Live Science to discuss this paper mostly said the finding made dark matter (already the dominant explanation for the universe's weirdness) look a lot more likely.

The thing about dark matter, or whatever's causing outer space to move so weirdly, is that it's predictably distributed throughout the universe. Physicists expect the dark matter "halo" around lightweight, dim galaxies like NGC 1052–DF2 to be extra big, and they expect to find less evidence of dark matter effects in more-massive galaxies. Similarly, MOND theorists expect to find the most significant observable effects of their modified laws in less massive galaxies like NGC 1052–DF2, and lesser effects in more-massive galaxies.

(Excerpt) Read more at livescience.com ...


TOPICS: Astronomy; Science
KEYWORDS: astronomy; darkenergy; darkmatter; ngc1052df2; science; stringtheory; uranus
Navigation: use the links below to view more comments.
first previous 1-2021-25 last
To: BenLurkin; 1FreeAmerican; AFreeBird; A. Patriot; AndrewC; antonia; aristotleman; Art in Idaho; ...
Surprised Gravity Cosmologists find galaxy that doesn't seem to have "Dark Matter" in it, and, because of that absence, claim it is proof that "Dark Matter" actually exists and that they won't have to tweak Newtonian physics to explain the motion of all the rest of the observed galaxies' stars motions. Go figure. This is entirely explicable within the Electric Universe Cosmology.—Electric Universe Ping


Clear Example of a Birkeland Current
"Z" Pinch with Symmetrical Plasmids
seen in Hubble Telescope View of
The Butterfly Nebula
ELECTRIC UNIVERSE PING!

If you want on or off the Electric Universe Ping List, Freepmail me.

21 posted on 03/29/2018 9:22:03 AM PDT by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: King Moonracer
No Dark Matter? Does BLM know?

We will have to have the FBI do a sham looking into this "lack of matter."

22 posted on 03/29/2018 9:27:56 AM PDT by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
[ Post Reply | Private Reply | To 13 | View Replies]

To: I want the USA back

True, but it’s been almost a century since the last big “paradigm shift” in science, so it may be that we are finally ready for a shake up.

I think sometimes we just have to wait for the old generation of scientists to die off before the younger ones who aren’t as set in their ways can step in and advance theories that take things in a new direction.


23 posted on 03/29/2018 9:29:00 AM PDT by Boogieman
[ Post Reply | Private Reply | To 14 | View Replies]

To: BenLurkin

24 posted on 03/29/2018 10:01:17 AM PDT by Buckeye McFrog
[ Post Reply | Private Reply | To 1 | View Replies]

To: Buckeye McFrog

It’s a gentrified galaxy.


25 posted on 03/29/2018 10:53:35 AM PDT by King Moonracer (Bad lighting and cheap fabric, that's how you sell clothing.)
[ Post Reply | Private Reply | To 24 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-25 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson