- AskScience AMA Series: We are the NASA New Horizons team, here to answer your questions about the New Horizons spacecraft, parallax imaging, deep space exploration and what we learned at Pluto. Ask us anything!
- What exactly is Voltage?
- How "thick" are lagrangian points?
- How come vaccines don’t pass from mother to child?
- Why and how do we get moles?
- Is it possible to catch more that one virus in the same time?
- Is it true that most seasonal flu start from Eastern countries and moves first to Europe and then to America? If yes, why?
- Lighting a fire on jupiter?
- Does animals trick other animals with fake cries?
- As an enveloped virus, why can COVID-19 survive on surfaces for so long? From my understanding enveloped viruses must stay wet to remain infectious and are sensitive to environmental changes
- Why are bubbles perfectly round?
- What Causes Distortion to the Shape of Stars?
- What is the current, up-to-date recommendations regarding wearing face masks? Do they protect the wearer against catching COVID-19?
- Are mini nukes possible?
- Does past exposure to viruses impact the ability to fight a new virus?
- I’m a chemist so I should know the answer to this question but I don’t. Why is Technicium a synthetic radioactive while the two elements above it on the periodic table (Manganese and Rhenium) are naturally occurring elements?
| Posted: 12 Jun 2020 04:00 AM PDT Join us at today at 1 p.m. ET (17 UT) to ask anything about NASA's New Horizons mission! In July 2015, New Horizons became the first spacecraft to explore Pluto and its moons. Recently, the spacecraft - which is more than four billion miles from home and speeding toward interstellar space - took images of the stars Proxima Centauri and Wolf 359 from its unique vantage point in deep space. Scientists combined these images with pictures of the same stars taken near the same time from Earth, creating stereo images that instantly demonstrate the parallax effect astronomers have long used to measure distances to stars. New Horizons is humankind's farthest photographer, imaging an alien sky. Why does New Horizons "see" these stars in a different place in the sky than on Earth? How are these images sent back from New Horizons? How long does it take the team on the ground to send commands to the spacecraft? Where is New Horizons headed next? Participants:
Username: NASA [link] [comments]  |
| Posted: 11 Jun 2020 07:21 PM PDT Everytime I ask this question or see it asked, I always see people comparing Voltage to a ball on a hill or water flowing down stream but those are just analogies. I haven't really gotten an answer as to why that happens. Like, do electrons flow from one point to another by some unexplainable law/rule of the universe or fundamental property? Like how gravity "just is" or how electrons have some sort of charge/energy because "that's just how it is". Why is it that when there is a potential difference, electrons move from one point to another? What is the technical/scientific answer to this phenomenon? [link] [comments]  |
| How "thick" are lagrangian points? Posted: 12 Jun 2020 04:25 AM PDT |
| How come vaccines don’t pass from mother to child? Posted: 11 Jun 2020 08:02 PM PDT If they share the same blood before birth, which I'm 90% sure they do, wouldn't their immune system keep information from when the mother got vaccinated? [link] [comments]  |
| Posted: 11 Jun 2020 11:09 PM PDT |
| Is it possible to catch more that one virus in the same time? Posted: 12 Jun 2020 06:40 AM PDT |
| Posted: 11 Jun 2020 10:49 PM PDT |
| Posted: 11 Jun 2020 02:09 PM PDT So in past forums of this question, "if you lit a flame on Jupiter, would it cause a massive fire/would Jupiter ignite or would there be a large fire at least", the responses have always been that nothing would happen because jupiter doesn't have oxygen to support a flame. However, from what I can see reading around, it seems like there is oxygen on Jupiter. Albeit a lot less than hydrogen, but in similar amounts to a lot of the other gasses ( https://www.sciencedirect.com/science/article/abs/pii/S0032063302001447?via%3Dihub ). Is there just not enough oxygen to really cause a big fire? [link] [comments]  |
| Does animals trick other animals with fake cries? Posted: 12 Jun 2020 06:02 AM PDT Many species use special cries to alert about danger. Are there animals that 'cry wolf', that give false alarms? If so, why? Does the other animals develop disbelief? [link] [comments]  |
| Posted: 12 Jun 2020 05:43 AM PDT |
| Why are bubbles perfectly round? Posted: 11 Jun 2020 09:56 PM PDT |
| What Causes Distortion to the Shape of Stars? Posted: 11 Jun 2020 11:17 PM PDT
The excerpt from the article that intrigued me. Shouldn't the shape of the Red Dwarf be distorted too, considering the "larger" star has more mass than the Red Dwarf? I initially thought it was a question of "density" but later read that if the Sun were replaced by a Black Hole of the same mass, then nothing would change in the Solar System, in terms of orbit and otherwise. So if density is out of the equation, considering the Black Hole example, and the larger star is more massive, shouldn't the distortion also occur in the shape of the Red Dwarf? [link] [comments]  |
| Posted: 11 Jun 2020 11:27 AM PDT There has been a lot of conflicting information in the media and literature regarding face masks protecting against COVID-19. I live in Canada for reference and our Chief Medical Officer at first actually advised against face masks because they were not effective against the virus. Then they said to wear them if it gives you some psychological comfort. Then they started explicitly recommending them in cases where physical distancing is not possible. Now they're making them mandatory on public transit. What gives? I've heard that masks apparently protect you from spreading the virus but does not protect you from catching it. But I've also read that it gives you some, but not full protection. But some is better than nothing, right? So what is the true answer? [link] [comments]  |
| Posted: 11 Jun 2020 09:01 PM PDT What would tiny nukes look like? Are they feasible? How much damage would they do? [link] [comments]  |
| Does past exposure to viruses impact the ability to fight a new virus? Posted: 11 Jun 2020 07:15 PM PDT Does the body's prior immunity and history of fighting previously encountered viruses have an affect on a person's ability to fight a newly encountered virus? Or is viral immunity built on an independent, one to one basis? In other words, can past exposure and immunity increase a person's ability to fight other viral infections? Does the answer hold true for other pathogens? [link] [comments]  |
| Posted: 11 Jun 2020 10:21 AM PDT |
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