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AskScience Panel of Scientists XV (self.askscience)

submitted by AskScienceModeratorMod Bot[M] - announcement

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Ask Anything Wednesday - Engineering, Mathematics, Computer Science (self.askscience)

submitted by AutoModerator[M] - announcement

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PhysicsMegathread: Anti-hydrogen/anti-matter (self.askscience)

submitted by AskScienceModeratorMod Bot

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AstronomyWith today's discovery that hydrogen and anti-hydrogen have the same spectra, should we start considering the possibility that many recorded galaxies may be made of anti-matter? (self.askscience)

submitted by DaKing97Chemical (Process) Engineering | Energy Storage/Generation

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Planetary Sci.How/Why did it snow in the Sahara Desert just very recently? (self.askscience)

submitted by leandroqm

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PhysicsWhy does it seem like so many artificial elements are made by combining Calcium with some other element? (self.askscience)

submitted by WaitForItTheMongols

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MedicineWhere/How do researchers get test animals with specific conditions like alzheimer's, and how do they evaluate improvements for what is inherently a subjective disease? (self.askscience)

submitted by ChironXII

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PhysicsWhy can't nuclear power plants be scaled down more? Or, if they can, why arn't people doing it? (self.askscience)

submitted by TheUltraMerchant

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PhysicsWould an object dropped straight down from a geosynchronous orbit land directly under the point from which it was dropped? (self.askscience)

submitted by _brucii

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Planetary Sci.How accurate must the time of launch be for spacecraft on a slingshot path? (self.askscience)

submitted by the_jumping_brain

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AstronomyWhat is the largest an impact crater on earth can be? (self.askscience)

submitted by heisenberger

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BiologyDespite the diversity of life, no form has three sexes. Why exactly? (self.askscience)

submitted by Ontrus

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AstronomyHow do they measure a planet's size? Do they measure from where the atmosphere begins, or where the planet's mass begins? (self.askscience)

submitted by Smutter0

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PhysicsHow does wind effect sound? (self.askscience)

submitted by 420-69er

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Earth SciencesWhat causes a Tsunami NOT to form? (self.askscience)

submitted by williamrikersisland

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Planetary Sci.Are there any circumstances in which the surface of a planet could be colder than the vacuum of space? (self.askscience)

submitted by Szechwan

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AstronomyIs it possible for another planets gravity to influence our tectonic plates? How big would said object have to be? (self.askscience)

submitted by usmcthrowaway2112

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Human BodyWhat is the difference between dehydration and thirst? (self.askscience)

submitted by tkaz44

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AstronomyIs it possible there are galaxies out there who are black? Big lumps of mass that got together but just never started producing any light. Like a dead galaxy or something? (self.askscience)

submitted by MarlinMr

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BiologyIs there such a thing as endangered plants??? (self.askscience)

submitted by Its_Farley

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PhysicsWhy isn't the Y in xyY color space the same as the B in HSB color space? (self.askscience)

submitted by integrals4daze

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PhysicsWhy do lower gears produce more torque? (self.askscience)

submitted by FiscalPenguin

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Chemistry[Chemistry] [Thermodynamics] How is energy transferred? (self.askscience)

submitted by JustSeanAgain

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Human BodyWhen you exercise and you burn calories, at what point do the calories actually leave your body? Is it during the exercise, or sometime after? (self.askscience)

submitted by murph94

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AstronomyIf looking at an angled galaxy, like Andromeda, through a telescope, is the light from the far end of the galaxy 200,000 years or so older that the front end? (self.askscience)

submitted by HolyGuide

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AstronomyMy understanding is that Nasa's Apollo program pushed the boundaries of science. However, once actually on the Moon, did the astronauts really make discoveries and push the boundaries of science with their experiments? If so, how? (self.askscience)

submitted by Some_french_canadian

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Planetary Sci.In regards to Hawking's project Starshot...How long would it take a probe traveling at 1/5th the speed of light to reach Alpha Centauri from the probe's perspective? (self.askscience)

submitted by Uruglyandimanahole

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