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https://www.sciencenews.org/article/neandertal-dna-cave-mud-migration-eurasia

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https://www.npr.org/2021/04/13/986664216/what-is-that-in-the-sky-floridians-catch-meteors-close-brush-with-earth
I thought this was interesting

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https://www.npr.org/sections/health-shots/2021/04/13/986411423/a-mystery-under-study-how-why-and-when-covid-vaccines-arent-fully-protective

"Breakthrough" COVID cases with vaccinated individuals

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https://www.npr.org/2021/04/14/981333730/carbon-emissions-could-plummet-the-atmosphere-will-lag-behind
Interesting, long lasting effect of climate change even if preventative steps taken

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2 supermassive black holes orbiting each other

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2 supermassive black holes orbiting each other

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thought this was pretty cool

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NASA Visualization Probes Light-bending Dance of Binary Black Holes

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A pair of orbiting black holes millions of times the Sun's mass perform a hypnotic dance in a new NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas - called an accretion disk - that surrounds each one.

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https://www.nasa.gov/mission_pages/chandra/news/telescopes-unite-in-unprecedented-observations-of-famous-black-hole.html

This is an article about the images taken about the M87 black hole.

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Scientist created a embryo that's part human part monkey

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For the first time, scientists have created embryos that are a mix of human and monkey cells.

The embryos, described Thursday in the journal Cell, were created in part to try to find new ways to produce organs for people who need transplants, said the international team of scientists who collaborated in the work. But the research raises a variety of concerns.

"My first question is: Why?" said Kirstin Matthews, a fellow for science and technology at Rice University's Baker Institute. "I think the public is going to be concerned, and I am as well, that we're just kind of pushing forward with science without having a proper conversation about what we should or should not do."

Still, the scientists who conducted the research, and some other bioethicists defended the experiment.

"This is one of the major problems in medicine - organ transplantation," said Juan Carlos Izpisua Belmonte, a professor in the Gene Expression Laboratory of the Salk Institute for Biological Sciences in La Jolla, Calif., and a co-author of the Cell study. "The demand for that is much higher than the supply."

"I don't see this type of research being ethically problematic," said Insoo Hyun, a bioethicist at Case Western Reserve University and Harvard University. "It's aimed at lofty humanitarian goals."

Thousands of people die every year in the United States waiting for an organ transplant, Hyun noted. So, in recent years, some researchers in the U.S. and beyond have been injecting human stem cells into sheep and pig embryos to see if they might eventually grow human organs in such animals for transplantation.

But so far, that approach hasn't worked. So Belmonte teamed up with scientists in China and elsewhere to try something different. The researchers injected 25 cells known as induced pluripotent stem cells from humans - commonly called iPS cells - into embryos from macaque monkeys, which are much more closely genetically related to humans than are sheep and pigs.

After one day, the researchers reported, they were able to detect human cells growing in 132 of the embryos and were able study the embryos for up to 19 days. That enabled the scientists to learn more about how animal cells and human cells communicate, an important step toward eventually helping researchers find new ways to grow organs for transplantation in other animals, Belmonte said.

"This knowledge will allow us to go back now and try to re-engineer these pathways that are successful for allowing appropriate development of human cells in these other animals," Belmonte told NPR. "We are very, very excited."

Such mixed-species embryos are known as chimeras, named for the fire-breathing creature from Greek mythology that is part lion, part goat and part snake.

"Our goal is not to generate any new organism, any monster," Belmonte said. "And we are not doing anything like that. We are trying to understand how cells from different organisms communicate with one another."

In addition, Belmonte said he hopes this kind of work could lead to new insights into early human development, aging and the underlying causes of cancer and other disease.

Some other scientists NPR spoke with agree the research could be useful.

"This work is an important step that provides very compelling evidence that someday when we understand fully what the process is we could make them develop into a heart or a kidney or lungs," said Dr. Jeffrey Platt, a professor of microbiology and immunology at the University of Michigan, who is doing related experiments but was not involved in the new research.

But this type of scientific work and the possibilities it opens up raises serious questions for some ethicists. The biggest concern, they said, is that someone could try to take this work further and attempt to make a baby out of an embryo made this way. Specifically, the critics worry that human cells could become part of the developing brain of such an embryo - and of the brain of the resulting animal.

"Should it be regulated as human because it has a significant proportion of human cells in it? Or should it be regulated just as an animal? Or something else?" Rice University's Matthews said. "At what point are you taking something and using it for organs when it actually is starting to think and have logic?"

Another concern is that using human cells in this way could produce animals that have human sperm or eggs.

"Nobody really wants monkeys walking around with human eggs and human sperm inside them," said Hank Greely, a Stanford University bioethicist who co-wrote an article in the same issue of the journal that critiques the line of research while noting that this particular study was ethically done. "Because if a monkey with human sperm meets a monkey with human eggs, nobody wants a human embryo inside a monkey's uterus."

Belmonte acknowledges the ethical concerns. But he stresses that his team has no intention of trying to create animals with the part-human, part-monkey embryos, or even to try to grow human organs in such a closely related species. He said his team consulted closely with bioethicists, including Greely.

Greely said he hopes the work will spur a more general debate about how far scientists should be allowed to go with this kind of research.

"I don't think we're on the edge of beyond the Planet of the Apes. I think rogue scientists are few and far between. But they're not zero," Greely said. "So I do think it's an appropriate time for us to start thinking about, 'Should we ever let these go beyond a petri dish?' "

For several years, the National Institutes of Health has been weighing the idea of lifting a ban on funding for this kind of research but has been waiting for new guidelines, which are expected to come out next month, from the International Society for Stem Cell Research.

The notion of using organs from animals for transplants has also long raised concerns about spreading viruses from animals to humans. So, if the current research comes to fruition, steps would have to be taken to reduce that infection risk, scientists said, such as carefully sequestering animals used for that purpose and screening any organs used for transplantation.

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Scientists Create Early Embryos That Are Part Human, Part Monkey

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For the first time, scientists have created embryos that are a mix of human and monkey cells. The embryos, described Thursday in the journal Cell, were created in part to try to find new ways to produce organs for people who need transplants, said the international team of scientists who collaborated in the work.

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This is a short article about a solar reflective coating used to prepare scientific testing in space.

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New Solar-Reflective Coating Tested on Electrodynamic Dust Shield

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New Solar-Reflective Coating Tested on Electrodynamic Dust Shield.

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https://www.livescience.com/rangeomorph-fossils-social-network-filaments.html

Here's a really interesting article I found about a 500 million year old "social network."

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NASA Satellites detect sings of volcanic unrest years before eruptions
https://www.nasa.gov/feature/jpl/nasa-satellites-detect-signs-of-volcanic-unrest-years-before-eruptions

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Found an article about work on Ingenuity's first flight on mars. Interesting read, go check it out.

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The Ingenuity team has identified a software solution for the command sequence issue identified on Sol 49 (April 9) during a planned high-speed spin-up test of the helicopter's rotors. Over the weekend, the team considered and tested multiple potential solutions to this issue, concluding that minor modification and reinstallation of Ingenuity's flight control software is the most robust path forward. This software update will modify the process by which the two flight controllers boot up, allowing the hardware and software to safely transition to the flight state. Modifications to the flight software are being independently reviewed and validated today and tomorrow in testbeds at JPL.

While the development of the new software change is straightforward, the process of validating it and completing its uplink to Ingenuity will take some time. A detailed timeline for rescheduling the high-speed spin-up test and first flight is still in process. The process of updating Ingenuity's flight control software will follow established processes for validation with careful and deliberate steps to move the new software through the rover to the base station and then to the helicopter. Intermediate milestones include:

* Diagnose the issue and develop potential solutions
* Develop/validate and upload software
* Load flight software onto flight controllers
* Boot Ingenuity on new flight software

Once we have passed these milestones, we will prepare Ingenuity for its first flight, which will take several sols, or Mars days. Our best estimate of a targeted flight date is fluid right now, but we are working toward achieving these milestones and will set a flight date next week. We are confident in the team's ability to work through this challenge and prepare for Ingenuity's historic first controlled powered flight on another planet.

Ingenuity continues to be healthy on the surface on Mars. Critical functions such as power, communications, and thermal control are stable. It is not unexpected for a technology demonstration like this to encounter challenges that need to be worked in real time. The high-risk, high-reward approach we have taken to the first powered, controlled flight on another planet allows us to push the performance envelope in ways we could not with a mission designed to last for years such as Perseverance. In the meantime, while the Ingenuity team does its work, Perseverance will continue to do science with its suite of instruments and is gearing up for a test of the MOXIE technology demonstration.

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Work Progresses Toward Ingenuity's First Flight on Mars

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The Ingenuity team has identified a software solution for the command sequence issue identified on Sol 49 (April 9) during a planned high-speed spin-up test of the helicopter's rotors. Over the weekend, the team considered and tested multiple potential so

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Here's an article I found that covers stuff that happened in science over this week!

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1. Climatology # Arctic response to a warming world {#compilation-2-1-article-title-1} Regional studies of paleoclimate provide important insights into how different parts of the Earth system respond to global climate change. Geochemical data gathered for cave deposits from northeast Greenland have now provided the first paleoclimate record for the High Arctic during an interglacial warming event extending from 588 to 549 thousand years ago.

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I found some garden tulips.

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I saw some choisya 'bluestone' plant

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I found some Bird of paradise flower in my neighbor's yard

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I saw a squirrel and a bird behind some houses in my neighborhood. I don't know what kind of squirrel or bird they were, but I thought they were nice.

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I found some Azaleas

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I found some lovely daffodils.

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I found some sort of flower before it is blooming.

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I found a Balkan anemone

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I found a Korokio in my yard!

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I found a wild daffodil in my yard with the Seek app!

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these animals are really cute

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here’s my dog acting feral at the beach

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These monkeys are pretty funny

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Funny Monkey Videos - A Funny Monkeys Compilation 2015

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This is a video that my sister sent me of her petting my cat.

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funny dog jumps into lake

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She likes laying down on the couch normally in these weird positions.

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i think this monkey should get his bottle back - sam frewing

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Satoorian's Post for 2/24 - Awww dancing doggo - VOLUME UP

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Satoorian's Post for 2/24 - Awww dancing doggo - VOLUME UP

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Also, if you have never watched the movie Beetlejuice, this song is from that movie! It's an awesome movie!

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Monkey going wild

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cat vs cucumber videos are so funny

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my dog scratching

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All the videos in here are super funny.

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I thought he wanted to look at the snow. I think he did, but he never went outside.

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I like this video of a cat wearing a mask like a hat

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I find dogs sneezing funny.

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This was my house on Sunday night! I live in NE Portland and we got A LOT of ice and snow. My street isn't an ice sheet anymore, but it is a sloshy mess and there are so may downed trees/branches!

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She is one of my two wife's her name is Marianne. Me, her and our wife have 10 children together. she is a witch. I love her and our wife very much.

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I have two cats and they mean the world to me. My other cat Ruby is super sweet and really nice to be around. Oliver is shy but loves to cuddle. My cats are the best and they are always there for me. (I accidentally posted this on the wrong period before)

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i like to obsess over the fact that this emoji’s eyes look like a mustache

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This is my dog bandit. He is a 4 year old mix between an Australian cattle dog, and a great Pyrenees. It's been really fun having him around even for the admittedly short amount of time I've had him, and taking him for walks gives me an excuse to get out of the house for a little while.

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these are my two guinea pigs, tina and gina. they mean a lot to me  and have helped me thru quarantine :)

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my friend drew this and it's pretty cool

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I have a 1 year old golden retriever he is super friendly and cuddly. He can be a big 99 pound ball energy or super lazy and just lay around all day. he loves swimming and running and we all love him.

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Orange Man is meaningful and symbolic, as he is carrying everything that is inside, and it is weighing him down, a clear allegory for mental health. Plus he looks pretty funny.

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These are my 2 dogs Lela May and Tara Jo. Lela is a 3 year old dachshund and Tara is a 5 month golden labradoodle. Tara was a surprise for my brother and I's birthdays in November.
I love how they are friends and play with each other, and I love spending time with both of them.

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These are my cats Pancho and Lefty. My parents named them after 2 cowboys in a Willie Nelson song. I got them when I was 4 and my sister was 2. I love them both very much.

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This is Cody. He is the center of attention in my family. Everyone always says hi to him and gives him a belly rub whenever they see him. He also has more names than we can count.

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This is Ravi, my pet Senegal parrot. He’s 17 years old— 2 years older than me— and I’ve had him for 2 years. He’s a very sweet boy and he’s a lot of fun to have around.

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This is Roger. He's not my kangaroo, but I strive to be as jacked as him.

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My dogs name is Margo, she is a 6 year old golden doodle. I have had her since I was 9 and I love her to death, she is one of the sweetest and most patient dog I have ever met. She makes me very happy.

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We found Nikki on the street. She is really over weight, but we love her anyways.

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Bowie is a smaller terrier/dauchshund mix. He's around 5 years old and he's very sweet and smart. I got him after 11 years of begging my parents for a dog, and I couldn't have asked for a better dog.

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rossco  is 12 years old . she is a pug and is super nice and she likes to go on walks.

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Junebug is two years old. She is a french bulldog and is super sweet and likes to snuggle. She can be very annoying but i still love her. She broke her back a few months ago so shes been pretty lazy since her surgery but that just means more cuddles. (this isnt actually her but it looks just like her)
-Lily Roller

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My dog is named Lily. She is around 8 years old and a border terrier mix. I got her in first grade. Lily loves to be with me while I do my Zoom classes. She makes up a big part of my home life. My family and I can't imagine what it would be like without her.

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Smudge is a very lazy and annoying dog but still very fun to play with. She likes sleeping and eating food that is accidentally dropped on the ground.

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Lenny is big furry love bug, he is an eight year old labradoodle, and never seems to mellow. He loves to cuddle, play tug-o-war, walks, and squirrels. He has separation anxiety so whenever on of us leaves and comes back he cuddles up against them and gets really excited. He is an amazing dog

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I have a 6 year old yellow lab named Maggie Mae. She's extremely cuddly and sweet, but also very energetic and likes swimming, walking, and playing fetch. She's a huge part of all our lives and we love her so much.

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Tripp is definitely an important part of my life. She is so adorable and snuggly, but also incredibly bossy and obnoxious. I call her my little devil dog! She just brings a lot of joy into my life!