Recent comments in /f/space

VertigoOne1 t1_j6da1oh wrote

I remember reading somewhere that the sun is not even the brightest star in the sky when you get out to the oort cloud, but certainly it would be visible, but we tend to make constellations with bright stars, so probably not very far off. A quick google, maybe about 60 lightyears or so and it would be barely visible, but 0-40’s it might be in a constellation.

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X_PRSN t1_j6d7em8 wrote

Starship and SLS will be working together for the next landing, or so that's what I remember hearing.

I think what a lot of people miss is that while we think of organizations like NASA, SpaceX, Blue Origin, et al, as competitors, and compare them like we compare football teams, truth is they are all working cooperatively towards the same goals, and our efforts to push further out into space will be all the better for it.

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Zippydodah2022 t1_j6d7a8s wrote

You're almost certainly too young, but right at the start of manned U.S. flights into space, NASA warned Americans that space flight was inherently very risk and said American deaths were inevitable. The Apollo 1 disaster caused a long delay but never an end, Same after the two Space Shuttle disasters. The program was paused both times as NASA investigated what went wrong and fixed it (though some engineers and scientists warned NASA beforehand of both reasons for disasters - launching too cold weather for Challenger, and for the second, some in NASA had seen foam breaking off from rocket and hitting underside of Shuttle. Top engineers said the falling pieces were too small to damage the Shuttle, but then huge pieces fell ohh and hit underside of Columbia, dooming the crew right there.

NASA had no way to rescue them anyway.

NASA also built the Shuttle without a way for crew members to bail out in a disaster at takeover. I believe current NASA crew quarters have a way for pilot to pull a level to explode away from rocket and a parachute for planning.

But there will be more deaths, NASA always says, reason I'd reject a free ticket on one of the tourist space casuals.

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snoopy369 t1_j6d553y wrote

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SuppressiveFire OP t1_j6d4bol wrote

Of course, it's a stunning photo! I actually posted it yesterday morning since it was Sunday for me in Australia (it's now nearly 1:30 AM on Monday for me), but it was removed for it not being posted on Sunday. I forgot most of Reddit goes by USA time, so it was actually Saturday afternoon in the USA when I posted it. lol

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ferrel_hadley t1_j6d2dxq wrote

The Sun is about brighter than a full Moon from Pluto. But hypothetically our Sun would appear as a super bright star from within the Solar System. Comets and the other planets would not be visible to human eyes. Though its slow 248 year movement across the sky would make it not fit in as a constellation.

But as you push deeper out while still part of the solar system that movement would become less and less obvious.

This is theoretical and does not answer your question directly but from a theoretical planet in the outer solarsystem then yes the Sun would be part of constellation to any civilisation only lasting a couple of hundred years.

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uranusisenormous t1_j6d1gfb wrote

Good way of putting it. The sun is def visible to other planets. But a constellation is an abstract concept that almost certainly requires some kind of intelligence. I don’t think dogs look at the stars and see archers or lions or bears. And even if they did, they’d have no language to pass that info down through the generations.

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SuppressiveFire OP t1_j6d1fn0 wrote

Source: https://apod.nasa.gov/apod/ap230128.html

Description: Comet-like plumes are blowing over the volcanic peaks of Mount Etna in this wintry mountain-and-skyscape from planet Earth. The stacked and blended combination of individual exposures recorded during the cold night of January 23, also capture naked-eye Comet ZTF just above Etna's snowy slopes. Of course the effect of increasing sunlight on the comet's nucleus and the solar wind are responsible for the comet's greenish coma and broad dusty tail. This weekend Comet ZTF is dashing across northern skies between north star Polaris and the Big Dipper. From a dark site you can only just spot it as a fuzzy patch though. That's still an impressive achievement if you consider you are gazing at a visitor from the distant Oort cloud with your own eyes. But binoculars or a small telescope will make for an even more enjoyable view of this Comet ZTF in the coming days.

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