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+--- Thread: Space is pretty :D (/showthread.php?tid=47)
Space is pretty :D - KiwionKeys - 01-24-2025
HI INTERNET PEOPLE!!!!! I may or my not want to see other people post cool things about space here. Please info dump about new things too!! I'd be interested to hear :O easy stuff, complex stuff, new discoveries, old news, whatever :O
Here are some photos I took too :3
I'll start:
The timescape theory for dark energy is something I thought was interesting!
Okay, so...!!
1: the universe is expanding, but the expansion is accelerating, and we do NOT know why.
2: the universe's structure is like a big stringy web? idk go look up videos of the cosmic web and simulations of the universe, it's hard to describe ;-;
so the timescape hypothesis suggested that because the giant voids in between whatever the dense parts are called, expand faster and faster, and so universal expansion would be primarity because of them. It's thought that voids have way less gravitational influence, so maybe as the dense parts get denser, they experience time slower as they fall into their own gravitational well (remember relativity and stuff), while the voids keep expanding at the normal rate. So from OUR point of view, as we keep falling in and slowing down, these voids look like they're expanding faster and faster.
Claiming "the density fluctuations are actually significant enough to cause a universal acceleration in expansion" unfortunately disagrees with one of the core assumptions of our current best model of the universe, Lambda-CDM, so disproving it would require some stellar evidence ;-;
BIG "unfortunately" is that the study that claimed to, I think in part, validate the timescape model did use data that's not accurate quite yet. And lots more other types of evidence more strongly supports Lambda-CDM that we haven't tested with Timescape. Not ONLY that, but the time difference between superclusters and supervoids is only be thousands of years, but timescape is suggesting it would have to be billions! It's sad though, cause timescape theory sounds so elegant!
But hey, we gotta disprove wrong things to get to the right things, so we shall see how things play out as more research comes in!
OMG I FORGOT THE PHOTOS (⁄ ⁄•⁄ω⁄•⁄ ⁄)
this is mars behind the moon (it's twice as big as the moon so imagine how far it has to be)
and old one, the double cluster, between Perseus and Cassiopeia
RE: Space is pretty :D - KiwionKeys - 01-24-2025
Spring constellations making a comeback at dawn
I highlighted the path the moon is taking around the Earth as well :0
RE: Space is pretty :D - gorzek - 01-24-2025
i've been into astronomy since i was little. i still love it.
this is one of my favorite books, full of beautiful photos and maps: https://www.amazon.com/Atlas-Solar-System-Patrick-Moore/dp/0517001926
RE: Space is pretty :D - KiwionKeys - 01-26-2025
YES I had a similar atlas!! I was hooked at the age of four and I think i read about 5% of the text ;-; i later learned thru youtube more than anythingThe Reader's Digest Children's Atlas of the Universe
Andromeda with 100 stacked photos
Light pollution and neighbors light weren't very nice ;-;RE: Space is pretty :D - gorzek - 01-26-2025
i've always loved photos of Andromeda. one day we'll merge with it. very exciting!
RE: Space is pretty :D - KiwionKeys - 01-27-2025
Indeed!!! Very awesome having such a beast of a galaxy as our neighbor!