cubinator

"The reason I turned those off, I shall explain earlier." Scott Manley is a time traveler confirmed.

Yes, that exactly.

Humans. Nobody's ever been outside the magnetic field for more than a couple of weeks, and NASA would like to use Gateway to study how the human body reacts to being in deep space for months at a time, before shooting a crew off to Mars and saying "'k see ya in two years". "Yes" -Elon Musk I agree. The delta-V gain from departing from the Moon to Mars is negligible at best, negative at worst, besides adding considerable time to the mission and making transfer windows even more difficult. And BFR will be way, way cheaper for larger payloads and more delta-V. But until that thing has already been flying operationally for years, its utility will be passed off as science fiction by most.

It being outside Earth's magnetosphere could make for some useful experiments.

I think we need as many people as possible, doing as much as possible around the Moon. The more, the better. That said. Gateway is intended to have a lander/ferry going to the surface and back many times, with crew staying there three months at a time and possibly making multiple trips to the surface. They would use ISRU at the south pole to refuel the lander. I think that's very handwavey, because we've never actually done ISRU on another planet. We don't know how difficult it will be to extract and purify the water in the Moon on a large enough scale to produce a full tank of propellant for a lander-shuttle. My main gripe, though, is probably with SLS. SLS is expensive just like the Saturn V was, and Saturn V lost support from short-sighted politicians after a few moon landings because of the cost. I don't know if SLS can keep support long enough to keep doing flight after flight the way a moon station requires. I also feel that SLS is a sunk cost when Starship and New Glenn are even in development. An expendable launch vehicle with the size and complexity of SLS is too expensive to make space travel accessible to everyone. Starship is designed to be built in a factory, not a lab, be as reusable as Falcon 9, and have the capability to build bases on the Moon. NASA should fund development of launch vehicles like these, and make payloads for them. Instead, they always try to do things with as many steps as possible, which causes things to happen slowly and expensively. If SLS works out, and NASA manages the funds to pump out launches the way they need to build Gateway, I will still be very happy. I just think it's very dangerous to bank on an expendable rocket being able to do the things that NASA wants to do at the Moon.

Hmm, running science experiments all day? I could do that...

The material falling into a black hole gives off light as it is compressed, yes. However, to assume that there is a black hole at the center of every star and planet because of this is to assume black holes are the only objects capable of emitting light and heat. We know there are plenty of other phenomena which can create considerable light and heat. For example, radioactive decay, toasters and computers, tidal forces between planets, and nuclear fusion. Black holes release a lot of energy when they collide, because they accelerate to extreme speeds when near each other. If there were a black hole within every star, we would observe that much energy when regular stars collide. However, we don't see such an intense collision when that happens. Stars form as gas collects by gravity inside a nebula. Eventually the 'protostar' object collects enough material that its weight compresses the matter in its center so much that nuclear fusion occurs. That fusion is what produces the star's light and heat. At that point, the star is not nearly dense enough that its weight compresses the core into a black hole. It takes a force like a supernova, where a giant star collapses in on itself completely, to get the core dense enough to become a black hole. Similarly, planets form by accruing material from nearby asteroids, comets, and dust, all of which have gravity and are gravitationally attracted. The compression force inside a planet from the weight of all the material builds up over time, but it is never enough to cause the creation of a black hole - Again, it takes a force like a supernova, one of the most powerful types of explosions in the universe, to create a black hole. Planets' gravity comes from their own mass, of rock and metal and ice, not from a central black hole. (You can imagine how very light rocks and metal would have to be if all the planet's mass was in a black hole at the very center.) And their internal heat comes from the collisions that originally collected the material, tidal forces from nearby bodies or the sun, and radioactive decay of heavy elements in the core. Furthermore, the material in a star would have to be spinning very fast indeed in order to orbit the black hole without falling into it - So fast that the sun would probably be blue on the east side and red on the west.

This might help. Follow instructions there.

Well I'd put my exactly topical music up there, but they say they won't take music from user-submitting sites, only "official music streaming services".

Asteroid Redirect Initiative: "Hold my nuclear warhead."

https://www.foxnews.com/science/football-field-sized-asteroid-earth.amp News articles about asteroid close passes are always over-the-top about collision potential, but this one struck me as particularly offensive. The article's title: "Football field-sized asteroid could hit Earth this year" (With a photo of Ryugu, a 1.0 km asteroid) The article title altered to accurately reflect the circumstances which are detailed within the article: 164 ft asteroid to pass over 4.2 million miles from Earth - probability of collision 1 in 7,000 I read the article knowing full well it would be a bit overblown, but I wanted to check if said space rock would at least be visible to my telescope-posessing self. No, it's going to be a full 17 lunar distances away, and it's only 50 m wide. Doubtful it'll be bright enough for me. It's not even as long as a football field as the article implies - it's a bit wider than the short width, maybe, but would span only half of the distance from endzone to endzone. Not to mention the extremely misleading intent of the article to make the reader think there is a notable chance of a collision. ESA estimates with a certainty of 99.9% that the asteroid will pass over 4.2 million miles from us. The chance of an actual collision is about 1/7000. But there is always a chance, so that is what news writers fixate on. With articles this bad today, grocery stores will no doubt be running out of stock with people preparing for the apocalypse when Apophis scoots harmlessly by in ten years. Anything to shift doomsday attention from our own carbon catastrophe, I suppose. Perhaps these articles could get the clicks they so desperately clamor for while maintaining authenticity in asteroid close pass articles in this way: They could brand the title of the article as the asteroid's near pass making it visible to observers on Earth, and detail in the body its apparent magnitude and what equipment is needed to see it. There are plenty of ways to make that clickable, and the article is exactly as useful to those who don't have the equipment. Even if the asteroid is mag. 20, you could say it will be "potentially visible TO YOU!" and it would be less of an exaggeration than the article I read today.

There is one thing I would maybe go back for...but it is too late now. My place is here. If I encounter a catastrophic problem on my way to Mars that could be avoided by going back to before the start of the mission, and can react fast enough, I would do that. =========== You're right, though - most people would probably use their first shift within a year, causing the original timeline to become very empty. It's likely that anyone who wants to get anything done will have to go back just so there are more people. ============ Since you de-age when you go back, you could wait until you are very old and then skip back, effectively getting to live three full lives. Your parents in the new timeline would probably not be happy about 7 year-old you suddenly becoming a wise old person in spirit and leaving to go do incredible things, though, so you might consider skipping to a later age.

You've exposed your identity as an Australian! There's no hiding it now!

http://spaceengine.org/blog190604/

Also, the planet 'Uranus' is now named Caelus, and nobody remembers otherwise.

The Star Wars prequels probably never happened in the Half Life universe.

"So what if a few people have to die? That's show business!" -Mettaton

I gave my first museum tour today! Little kids, very energetic. It went quite well, but I'm tired now.

Last night I dreamt I was late for class because I had been building a powerful laser gun.

Since 0.2something, I think. Before Career Mode.

Scrumin Birt.

Your artstyle has definitely become more refined.

Cockroaches are alpha pre-release termites.

Dobson reed Cove E Automobile cold weathering

Plenty of other small insects to eat. I am not aware of any creature which eats only mosquitoes. Frogs, birds, etc. would continue to eat gnats, small parasitoid wasps, and the like. Even this happened, it's easy enough to eat the locusts. They are nutritious and tasty. However, I don't think their predators would decline in number so much when only a few species of food are eliminated.