Kevin_Hall

Can Sirius go supernova after thousands of years and what would happen? I'm very curious to figure it out. I read Calvin Belk thought on it and he says that What do you think of it?

The "cube" on the far side of Moon had been captured by China’s Yutu 2 Rover. As it was after found out, it was a common moon rock. https://www.popsci.com/science/chinas-rover-mysterious-hut-on-moon/ https://www.space.com/moon-mystery-hut-rabbit-shaped-rock-china-rover

I read that JWST has got enough fuel to last 20 years, but there is another question: it's said that JWST is threatened by being hit by space debris. Does anybody know any details of it? https://www.space.com/james-webb-space-telescope-fuel-20-years

How are future colonialists going to overcome Mars's gravity? Low gravity will definitely affect their bodies. I mean this problem. Beg my pardon for not having fully described my question.

Mars gravity is 3.721 m/s2, which is about 2.65 less than Earth's gravity How could Mars low gravity problem be solved?

The idea is rather old: we put a bunch of Al foil 10 microns thick and reflect the solar flux over the daytime part of the planet. What sea level area will be shaded by 1 km2 of such foil at an altitude of 1000 km? Does it make sense to raise such an umbrella on the Geostationary orbit?

I mean Elon claimed that SpaceX was going to absorb CO2 to create rocket fuel. I thought it was clear. Such solutions do already exist, such as NASA's one https://technology.nasa.gov/patent/TOP2-160 As a matter of fact, such technology has been used by Canadian company Carbon Engineering https://www.nationalgeographic.com/science/article/carbon-engineering-liquid-fuel-carbon-capture-neutral-science By the way, what is your personal opinion on creating rocket fuel using plastic waste, exchemist?

So, you think plastic waste will never become a source for producing rocket fuel, because it will have zero efficiency?

Do you know if JSWT is capable of capturing BH? I know that it's not its main goal, though if it could we would discover much more than we expect.

While Elon is on its way to use CO2 to produce rocket fuel, I've got another question. Is it actually possible to reduce plastic waste into rocket fuel?

How will geomagnetic reversal influence Earth? How is this process going? Thanks for your replies!

Really great number of BHs, that's insane. Imagine that somewhere in parallel universe people are looking at an image with plenty of white holes 😀 How wonderful it would be to have such a telescope to capture a BH..

ISS astronauts recorded a video to wish a Happy New Year https://tass.com/science/1383067 Happy New Year! Wish you good luck and persistence during next year!

Russian scientists have discovered a new mechanism for the formation of formaldehyde in space - a compound that plays a significant role in the synthesis of organic compounds necessary for the origin of life on Earth. According to the new results, organic molecules can appear in molecular clouds in the early stages of evolution, that is, much earlier than the formation of stars in them. Molecules of water carry out the transfer of protons from oxygen atoms to a carbon atom, which catalyzes the formaldehyde synthesis reaction without the need for a large amount of energy. Source: https://pubs.acs.org/doi/10.1021/acs.jpclett.1c02760

Waiting for JWST to tell us 😀. Joke Actually not yet, but there is an interesting arcticle about it in Discover mag https://www.discovermagazine.com/the-sciences/can-life-exist-on-a-rogue-planet

Astronomers have found 70 wandering planets after having processed 20-years collected data. Wadnering planets are the planets that are located in interstellar space and are not gravitationally associated with a star or brown dwarf. Over the past 20 years, about two dozen such bodies have been discovered. The source: https://www.nature.com/articles/s41550-021-01513-x

In my opinion, SCIENCE forum is not about to express your emotions, but facts, exchange knowledge and objective thoughts. Thanks, gentlemen.

Socrates would have appreciated your thought)

What is dark matter and what we know about it?

https://www.eurekalert.org/news-releases/936908 I Hope there won't be any problems while its exploitation. What do you think of it?

They went for the suborbital flight, while Yusaku and Yozo are on the orbit now. They are spending 12 days there https://www.nytimes.com/2021/12/08/science/yusaku-maezawa-space-station.html

My profile shows relevant information to the field of my business. I am not sure, if it is okay to discuss either mine or yours personal information here and I would rather get focused to the subject. Thank you gentlemen.

Astronomy uses mathematics, physics, and chemistry. Weather it out of curriculum or not - there are Master and PhD programs that are popular to continue one's career in UK. Lots of proposals, though I am not to mention exact projects here. Thank you. Best wishes!

On the December, 8 Yusaku Maezawa and Yozo Hirano have docked to the ISS module “Search". They were from Baikonur Cosmodrome where Yuri Gagarin’s first ever flight to space had taken place in 1961. Also it’s known that they are going to make a first ever made painting using brushes in space. On the ISS, they will have access to both the Russian and American segments of the ISS. The return of the crew is scheduled for December 20. https://spaceadventures.com/ms-20/ https://www.theguardian.com/science/2021/dec/08/dream-come-true-japanese-billionaire-blasts-off-for-iss

I mean if you have an unlimited access to smth you don't want this anymore. If you have a lot of money you don't want to earn it, if you have no money your only desire is to have it. That's why Bill Gates does charity and Elon makes rockets. They don't want money, they want something more valuable and global. Now they have another values, more than just money So if you live forever, there is no sence in such life, that's my opinion