Starship Asterisk*

darera wrote: ↑Sun Jan 26, 2020 5:36 pm How does Curiosity keep itself so cleean? Not a speck of dust anywhere.

The other end gets dirtier. Not sure why that end in today's pic stays so clean. Here's a pic from just about a month earlier showing the dirty end.

Rob

I like the concept of named decades. Using that concept, I've now lived in nine decades -- 40s, 50s, 60s, 70s, 80s, 90s, 00s, 10s, and now 20s -- though in a few days I'll be only a relatively youthful 72. If I live as long as my parents I'll easily make it to 11 decades (or portions thereof.)

Rob

A couple of your links are showing...
Rob

Full picture is too heavy. I agree. My computer didn't want to open the full size picture. That almost never happens. Ann Yes, it is taking about 3 minutes to download to my desktop. (I'm doing that so as not to strangle my browser.) The clue is in the filename, which is StarryNight_VanGogh_ 30000 ...

When I am Forwarding a single APOD to a friend using messages on my phone, the date is off one day. Unfortunately I am suddenly sending the day before. I then add one digit (example 21 to 22) to set the date I originally tried to send. Why is this happening? Please. Is it something to do with time ...

Respect SI wrote: ↑Sat Oct 12, 2019 7:46 pm Is it possible in the future to use non-retard unit for the distance ?

So you want to post anonymously, using with a nom de post that suggests you're looking for respect for SI units, but you refer to that other system of units disrespectfully? I predict your effort will be wasted.

Rob

Just tried that page in Firefox, Safari, Chrome and Opera and all loaded it just fine. All my browsers are the latest versions for MacOS. Chrome and Opera are kept in their as-delivered state, while Safari and Firefox each have a few add-ons to make life more convenient. Does your copy of Chrome hav...

The climatic effects will vary greatly by region, and the responses to those will also vary by region (which is a polite way of saying wealth). Some people will be thoroughly disrupted by relatively minor issues while other people in other areas will be able to withstand -- or at least recover from ...

https://www.youtube.com/watch?v=DO9_OYASXtI You live in Alabama :?: Nova Scotia. I posted that at 9:38 Saturday morning, and yes, that was a few hours before it hit here. And yes, it was a category 1 -- a strong 1, almost a 2 -- when it reached shore, though it quickly degenerated to a tropical sto...

It's not quite ready to leave yet, Orin. It'll be arriving here in a few hours. Only a Cat 1 now, but still likely to cause damage. Center is going to pass almost overhead! You live in Alabama :?: :? Nova Scotia. I posted that at 9:38 Saturday morning, and yes, that was a few hours before it hit he...

It's not quite ready to leave yet, Orin. It'll be arriving here in a few hours. Only a Cat 1 now, but still likely to cause damage. Center is going to pass almost overhead!

Rob

APOD Robot wrote: Also known as the Seven Sisters and M45, the Pleiades lies about 400 light years away toward the constellation of the Bull (Taurus). There has been a lot of controversy regarding the true distance to the Pleiades. The figure "400 light years" comes from the parallax meas...

Thanks Bystander. I'll have to go and read the paper now -- though I'll have difficulty parsing that dense form of English they're using. Just found this (my emphasis)... The term “big bang” really refers to the beginning of the universe as we know it–that is, an expanding universe filled with matte...

And their answer to this important question is: Based on their simulations, the researchers estimate that planets very close to Earth in size, from three-quarters to one-and-a-half times the size of earth, with orbital periods ranging from 237 to 500 days, occur around approximately one in six star...

There seems to be lots of animations of continental drift up to today on the web and on Youtube, though with what level of expertise they were prepared I cannot tell. Some of them project into the future as well.

Rob

This article seems to suggest that cosmic inflation occurred before the big bang . It has always been my understanding that it was the time immediately following the big bang. I'm not sure how that impacts this study and its assertion that dark matter may be scalar particles . I think the article w...

Chandra X-ray Observatory wrote: At the center of 30 Doradus, one of the largest star-forming regions located close to the Milky Way , What? Ann Well, I guess it depends on what you mean by close. From some online article I just found... The star-forming region, 30 Doradus, is one of the largest lo...

dark matter centre.jpg As the description says: The yellow-hued quadruply-imaged Supernova ... occurred in the early universe far behind the cluster. So it's kind of SN => (IS + HC) => Earth. Thanks, Rob. If that's the case, then can you show me the place of the SN in the picture as if the IS+HC we...

... Now the question is: what is the order of things? Is the SN inside the IS? Or is the IS inside the HC? Or did the SN happen in an even farther galaxy, so its light came to us through this sequence: SN => IS => HC => Earth? As the description says: The yellow-hued quadruply-imaged Supernova ... ...

That is an interesting question..how do stars form in a star cluster and why are there star clusters? The Globular Cluster Wikipedia article contains just about all we know about the subject, presented in an accessible way. (There's another article about Open Cluster s, but M13 is a globular.) Rob

Hellobozos wrote: ↑Thu Jun 13, 2019 2:06 am [https://www.facebook.com/brent.bozo/vid ... 635279075/][/url]

best version ,if it can be viewed

Facebook's response...
"Sorry, this content isn't available right now
The link you followed may have expired, or the page may only be visible to an audience you're not in."

Rob

You can go as deep into Star Trek's warp factor as you want. Have a look at this fandom Wiki page. Scroll down to the second table and you'll see that warp factor 4 would get you to Alpha Centauri in about 25 days while warp 9 would get you there in 52 hours.

Rob

Is it wrong to take a gas-guzzling cruse ship to see glaciers calving? Eventually we as a species will have to figure out how to exist on what is effectively a zero-sum world. We're going to go through a very hard time getting there, but we'll either figure that out or die off. As for travelling to...

Thanks

Rob

Note the thin light streak along the right edge of the galaxy. Is that a more distant edge-on galaxy, or something else? I think it must be, though it's not very clear. There's a brighter central blob near the middle of what I assume is an extended disk. Here it is, greatly enlarged from a differen...