But if NASA 'can’t do anything right,' how come SpaceX and other private companies rely so heavily on former NASA engineers, research, and infrastructure to even operate?
What do you mean after all? Wasn’t it the consensus since forever that there was basically 0 chance of anything actually colliding because galaxies are mostly empty space? I’m pretty sure I read about that when I was a child.
Much more likely is that the galaxies will zoom relatively close to each other – say, a little under 500,000 light years away.
In To Sleep In A Sea Of Stars by C. Paolini, there is a group that aims to prevent or circumvent the heat death of the universe, although the post-human civilisation has barely touched a few star systems (<30 ly). In a similar fashion, I recommend to take the necessary steps to build up a galaxy defense force soon.
Took me a minute… I have to jump through many self made hoops to get new websites through my firewall’s DNS filter and I don’t enable http. It is however on archive. I’m probably the only nerd here with such masochistic network, but whatever. Thanks for the comment. Tycho was a character, that’s for sure.
Ugh, didn’t read the “dwarf” part and got my hopes up for planet 9. When they eventually do find it they have to name it something with P so that the old mnemonics still work.
This far-flung orbit may be the result of an encounter with a giant planet, which ejected the candidate dwarf planet out of the solar system, say the researchers.
Poor guy. Hopefully he’s out there finding his own family.
At least it doesn’t have to deal with the toxicity Pluto does, being in the family one day and then coldly rejected from the family from the planet club the next. And we wonder why it’s exterior is frozen…
It turns out that for all of these different methods, you will find an extremely clear bimodal distribution that groups the 8 planets together as being highly capable of clearing their orbits whereas everything else falls into a statistically distinct non-clearing group. This is because there's sound dynamic reasons for why objects would fall into one group or the other with nothing lasting long in the "grey area" between them. Once an object becomes significantly better than its orbital neighbors at clearing the neighborhood it snowballs due to the feedback loop of scattering or absorbing its neighbors into itself.
That makes this a good criterion for classification. As the old saying goes, "cleave nature at the joints."
The JWST has done it again. The powerful space telescope has already revealed the presence of bright galaxies only several hundred million years after the Big Bang. Now, it’s sensed light from a galaxy only 280 million years after the Big Bang, the most distant galaxy ever detected.
Prior to the JWST, we had no infrared telescopes with large enough mirrors to detect light from the early galaxies. The Hubble can see near-infrared light, but only has a 2.4-meter mirror. It found only one galaxy from the Universe’s 500 million years. The Spitzer Space Telescope was a dedicated infrared telescope, but it only had an 85 cm mirror. Not only does the JWST have a much larger mirror, but detector technology has advanced so much that the veil obscuring the early Universe is being lifted one ancient galaxy at a time.
If we are 1AU from the sun, and this planet is 90AU from the sun, then it is between 89 and 91 AUs from earth depending on the progress of our orbits (assuming perfectly circular orbits). So they did change the frame of reference.
This dwarf planet is 90 AU from US not from the sun. They just said that the dwarf planet is 90 AU away from us and that 1 AU is equal to the distance between the sun and the earth.
But since the dwarf planets orbit is extremely eccentric that varies heavily.
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