Recent comments in /f/space

space-ModTeam t1_j55n8cg wrote

Reply to Can someone recommend a good night sky app and a good resource to be able to find C/2022 E3 (ZTF)? by DomesticApe23

Hello u/DomesticApe23, your submission "Can someone recommend a good night sky app and a good resource to be able to find C/2022 E3 (ZTF)?" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

1

AndreaRose223 t1_j55gknu wrote

Reply to Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

When I was in the Navy 20 years ago and I was sailing in the central Pacific under Darken Ship conditions and not another shop for miles over the horizon, I saw more stars in the sky than I knew possible. It was like looking out from the ISS.

4

84camaroguy t1_j555tof wrote

Reply to comment by kmcclry in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

What you’ve mentioned is part of it, but we’ve done comparisons in bright sunlight through a magnified optic with similar results. She just does t resolve the detail that I do. Like the comment under yours though, she can differentiate more colours than I can.

2

Mutex70 t1_j555k0n wrote

Reply to comment by PoppersOfCorn in Does it bother you that you won't be alive when we discover aliens & start to colonise other worlds by [deleted]

>We will have evolved to the needs of our environments

This literally means the environment needs something, and we evolve to meet it.

The sentence "Hank provides for the needs of his children" means Hank's children have needs, not Hank himself. Same thing here.

It may not be what you meant, but it is what you wrote.

Additionally, "need" is a vague term which does not capture the driving force behind evolution.

Imagine a species that has all its needs met. There is more than enough food for the current population, no predators, but the species is limited to one offspring every 10 years, and typically have 30 years when they can produce offspring.

A mutation occurs, and this new member of the species can have offspring every 5 years. In this case, even though all of the "needs" of the species are being met, that mutation will likely out-compete the trait of having offspring every 10 years. The species will evolve, even though all its "needs" were being met.

1

Rdtadmscksdnkydk t1_j54zi9x wrote

Reply to comment by [deleted] in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

The "wow muh post history?!" Is such a weird thing to bring to me. It takes 2 clicks to get to your post history, and it's just as easy to read as your comment here.

Its very much an intended feature of this website.

1

CrimsonEnigma t1_j54y447 wrote

Reply to Question: Who holds the record for longest time between astronaut selection and first spaceflight? by JarrodBaniqued

I believe it was Don Lind, who was selected in April 1966. He was backup for some Skylab missions, but didn’t actually fly until STS-51-B in April 1985, 19 years later.

We *might* also count Joe Engle. He was also a part of the April 1966 group, but had his first flight on STS-2 in November 1981, so only 14 1/2 years after selection. However, that’s only his NASA selection - he was also selected by the Air Force in the third Aerospace Research Pilot School class in 1961, which would put his gap at around 20 years, if we’re including USAF programs in addition to civilian ones. However again, he flew as part of the X-15 program, and some of his flights crossed the USAF’s definition of the boundary of space (50 miles), but fell short of the FAI’s mark (100 km). If we count those flights, then his first spaceflight was X-15 Flight 138, which was in June 1965 - just a few years after his USAF selection.

4

space-ModTeam t1_j54xyph wrote

Reply to Question: Who holds the record for longest time between astronaut selection and first spaceflight? by JarrodBaniqued

Hello u/JarrodBaniqued, your submission "Question: Who holds the record for longest time between astronaut selection and first spaceflight?" has been removed from r/space because:

  • Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

1