- AskScience AMA Series: We are U.S. and European partners on the world's latest Earth-observing satellite, Sentinel-6 Michael Freilich, which will observe changes in sea levels for at least the next decade. The spacecraft is "go" for launch on November 21. Ask us anything!
- Are we just lucky that covid does not have a higher mortality rate or is this because more deadly infectious diseases are less common?
- Is there a way of removing a recessive lethal gene from a population just by crossbreeding?
- What is the role of a Staphylococcus culture in artisinal sausage making?
- Do octopuses show reduced cognitive abilities/lower intelligence after losing one or more of its tentacles?
- If I understand the mRNA vaccine correctly, the vaccine contains molecules that are able to enter a healthy human cell, and cause that cell to produce the spike protein of the nCOV-SARS2 virus, enabling the body to produce antibodies against the virus. What happens to the cells that are taken over?
- Are icebergs made of ocean water or freshwater?
- Why do vaccines have to be injected?
- Where do the seeds for seedless fruit come from?
- Will Covid-19 Vaccination technology work against the common cold coronavirus also?
- What adaptations do elephant seals have that allow them to dive 2km underwater?
- When a massive star explodes, what keeps it bright for months?
- How did humans survive for so long without clean water to drink?
- Why do micro-interactions between qubits not "collapse" the wave functions (under Copenhagen interpretation) when things like heat and sound can?
- Does your beard grow faster if you shave it often?
- What are some really difficult tasks to solve when it comes to distributing billions of doses of vaccines across the planet?
- Will COVID-19 vaccine candidates (specifically mRNA) allow us to more quickly suppress or prevent pandemics in the future?
- Will having taken the flu vaccine, somehow negatively impact taking the covid vaccine in any way?
- COVID test before COVID vaccination?
- Are trees active during winter?
- How come incision is made through the back instead of the abdomen when you donate a kidney?
| Posted: 17 Nov 2020 04:00 AM PST Sentinel-6 Michael Freilich is a historic U.S.-European partnership that is designed to collect the most accurate satellite data for our continuing measurements of global sea level and to help us understand how our oceans are responding to climate change. It's named after Dr. Michael Freilich, the former director of NASA's Earth Science Division and a tireless advocate for advancing satellite measurements of the ocean. Liftoff is Saturday, Nov. 21 at 12:17 p.m. EST (9:17 a.m. PST, 5:17 p.m. UTC) on a SpaceX Falcon 9 rocket from Vandenberg Air Force Base in California. This spacecraft will:
Read more about the mission in the official press kit. Participants are:
We'll be answering at 1pm EST (18 UT), ask us anything! Username: /u/nasa [link] [comments]  |
| Posted: 16 Nov 2020 04:03 PM PST |
| Is there a way of removing a recessive lethal gene from a population just by crossbreeding? Posted: 17 Nov 2020 07:31 AM PST For example there is this condition in pigs called porcine stress syndrome (PSS) that is caused by a recessive gene in autosome. If the pig is homozygous for that gene, it has an increased risk of dying in stressful situations. I was wondering if there was a way of removing it from the pig population just by crossbreeding and not using any gene technology. [link] [comments]  |
| What is the role of a Staphylococcus culture in artisinal sausage making? Posted: 17 Nov 2020 07:08 AM PST So I have been watching this YouTube video on a artisinal sausage maker in New York. He said he uses a culture of Lactobacillus and Staphylococcus. I'm very interested in and have some home experience in fermenting food, but I never heard about Staphylococcus being used. I associate it with food poisoning and searching online points me towards Staphylococcus xylosus as a potential candidate for sausage but for the rest all articles I can find don't seem to answer my question or are not visible to me. [link] [comments]  |
| Posted: 17 Nov 2020 05:56 AM PST So I know that octopuses have an incredible neurological system in place with a main brain and one smaller one in each tentacle, plus an extensive nervous system. When an octopus gets attacked and loses an arm/tentacle it will eventually regrow, but: Will the mental capabilities/intelligence also reduce for that time? Alternatively are these little "sub-brains" mainly necessary to control the arm they are in? octopi is wrong and never been a word. [link] [comments]  |
| Posted: 17 Nov 2020 04:43 AM PST |
| Are icebergs made of ocean water or freshwater? Posted: 16 Nov 2020 02:33 PM PST |
| Why do vaccines have to be injected? Posted: 16 Nov 2020 10:20 PM PST Ok so this might sound confusing but why do we need to take medicine that's injected via injection. Is there a particular reason why they need the medicine needs to be injected and not in example consumed? [link] [comments]  |
| Where do the seeds for seedless fruit come from? Posted: 16 Nov 2020 03:11 PM PST |
| Will Covid-19 Vaccination technology work against the common cold coronavirus also? Posted: 16 Nov 2020 11:47 PM PST Now that we seem to have effective vaccines against coronaviruses, does it mean we will also be able to manufacture a vaccaination that works against the common cold? [link] [comments]  |
| What adaptations do elephant seals have that allow them to dive 2km underwater? Posted: 16 Nov 2020 09:33 AM PST Was reading on the remarkably resilient lice found on their coats when they deep dive, but then thought wait how can a mammal withstand such pressures? By contrast, whales only dive to about 500m . Are there any known adaptations that allow the elephant seal to dive so deep for so long? [link] [comments]  |
| When a massive star explodes, what keeps it bright for months? Posted: 16 Nov 2020 03:17 PM PST I couldn't find the answer on google or in my textbook so I figured it wouldn't hurt to ask. I was thinking it might be ionizing radiation? [link] [comments]  |
| How did humans survive for so long without clean water to drink? Posted: 16 Nov 2020 11:25 AM PST I'm assuming that the large majority humans have only had reliable access to clean water relatively recently - how come loads of people didn't die from drinking dirty water historically? or did they? [link] [comments]  |
| Posted: 16 Nov 2020 12:24 PM PST I've been trying to find what it means to be an "observer" or something that "collapses" a wave function (those things currently mean the same thing to me). Why do small things like applying a Hadamard gate not collapse the superposition but exposing it to light or sound do? Where is the cutoff? Why is the cutoff? Thanks [link] [comments]  |
| Does your beard grow faster if you shave it often? Posted: 16 Nov 2020 11:28 PM PST I saw this in a thread in an ask reddit about myths and I would like if somone could give me more information on why this is a myth and what can cause a beard to grow faster. [link] [comments]  |
| Posted: 16 Nov 2020 11:25 AM PST I would assume this is a logistical nightmare. Political one too? [link] [comments]  |
| Posted: 16 Nov 2020 11:19 AM PST Since mRNA vaccines looks like they could be very helpful in fighting COVID, could these vaccines also be used for other virus' as well? And possibly quickly end or even prevent pandemics in the future? [link] [comments]  |
| Will having taken the flu vaccine, somehow negatively impact taking the covid vaccine in any way? Posted: 16 Nov 2020 12:03 PM PST |
| COVID test before COVID vaccination? Posted: 16 Nov 2020 10:40 AM PST With COVID's long incubation time, will we need to test people (and wait for the result) before they get the vaccine? Is there any data on the effect of COVID vaccines in trials when administered to someone already infected with the virus? Thanks! [link] [comments]  |
| Are trees active during winter? Posted: 16 Nov 2020 10:08 AM PST Hello, I was curious what happens to trees that lose their leaves in winter in climates where the temperatures get cold in winter, even below 0 degrees Celsius. Does water (sap etc.) still move inside them? What drives it? Thanks! [link] [comments]  |
| How come incision is made through the back instead of the abdomen when you donate a kidney? Posted: 16 Nov 2020 09:32 AM PST |
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