Astronomy and Astrophysics Forum

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Join in expert discussion on the topics of Astronomy and astrophysics. This may include discussion on celestial objects, space, and the physical universe as a whole. Mainstream science only.
Undergrad How do I properly plot the solar spectrum and handle the flux of Arcturus?
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Undergrad Are all the celestial systems in the universe on a big plate?
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Undergrad Can Future Civilizations Use Dyson Spheres to Survive a Red Giant Sun?
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High School Is Colonizing White Dwarf Systems Feasible for Interstellar Travelers?
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High School Jupiter's pole storms - potential relation?
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How Black Holes Work: The Onion Explains
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Collector's Item For Space Buffs
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High School Need your advice how to start learning astronomy
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High School Is it a Meteorite? Las Vegas Hiker Finds 81.7g Object
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Undergrad Will stars on the other side of the galaxy affect gravity here?
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Undergrad Are Cosmic Rays Actually Neutrinos?
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High School Viewing distant celestial objects
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Undergrad Coude Spectrograph vs Cassegrain?
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What quirky tradition do astronauts have before launching into space?
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Space travellers can run but they can't hide
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Undergrad Does the external field effect prove MOND over dark matter?
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High School What Would Happen if the Earth Stopped Rotating?
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Undergrad How does a brown dwarf's temperature decrease over time?
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Undergrad How can one see the noise in the Fourier Domain (Nyquist Frequency)?
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Undergrad How to find the distance from a star to the center of the Milky Way Galaxy?
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High School How common are total eclipses in the universe?
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High School Can a Planet Have a Moon that Never Casts a Shadow?
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Undergrad Strange radio signal from Proxima Centauri
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Undergrad Is the Ecliptic Plane the Same as the Apparent Path of the Sun?
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Undergrad What is the astronomy reason for no UHF channel 37?
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High School Has there ever been a planet-planet eclipse (i.e., observed from Earth)?
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High School Does matter accumulate in Earth's gravity well?
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Undergrad Solar chromosphere: inter-conversion of Ca I, Ca II, role of photons
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Undergrad What is a "temperature distribution" in a stellar photosphere?
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Undergrad Which forces maintain the shape of the Milky Way?
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High School 'A Brief History of Time' question on gravity
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High School Mars Landing, How instantaneous communication was possible
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Graduate Description of Titan and Potential Approaches to its Exploration
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High School What force keeps the planets orbiting normally?
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Undergrad How do Limb-Darkening curves differ at two different wavelengths?
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Undergrad Why is Mars not considered a "full-fledged" planet?
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High School "Snow" on comet 67P/Churyumov-Gerasimenko is actually stars
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Undergrad Are there more Pulsars than we observe?
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Stargazing Will the supernova explosion of Betelgeuse influence the Earth?
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High School Tidal locking for planets of K type (orange) dwarf stars
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Undergrad Will the Sun end as a Type 1a supernova?
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High School How the Earth's Magnetic field deflects the solar wind
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Undergrad Follow an object into a black hole
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Undergrad The stellar system genesis & supernova cycle
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Stargazing Where to find more material about LORENE software?
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Graduate Solve Stellar Structure with Lane-Emden Equation
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High School Next Generation Planetary Missions Hunt for Gravitational Waves
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High School Understanding the Mass of Solar Wind and its Impact on Earth's Surface
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Stargazing Is There a Common Pattern in Einstein Crosses?
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Undergrad Dark Energy's Effect on Black Holes
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High School Planetary debris found in white dwarf atmospheres
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Undergrad Solve Fermi's Non-Paradox: Astronomers Weigh In
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Undergrad Hubble deep field & ancient galaxies
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Undergrad What is the rate of ejecta deposited between planets?
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High School What is the true density of the Asteroid Belt?
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Undergrad How big will the Betelgeuse supernova appear?
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Undergrad If Ouamuamua were a propelled lightsail, wouldn't we have detected it?
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High School Dark Matter -- Is it possible that Dark Matter has Planck mass and Spin two?
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Stargazing Can distance in space be measured by human systems?
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High School Trying to understand the differences between distant & local galaxies
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Undergrad Solar System Diameter: Calculating Distances & Multi-Star Systems
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High School Is the Universe Expanding Due to Spinning?
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Undergrad Can Einstein-Chwolson rings be observed from a telescope on Earth?
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High School Darkest Place on the Surface of the Earth
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Graduate Is there a closed form solution to Kepler's problem?
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Undergrad Ignite Jupiter? Could Earthlike Planets Exist in Its Atmosphere?
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Graduate Life supported by radiation from the accretion disk of a black hole
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High School When does the perspective from the cockpit of a spaceship change?
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High School Trace methane in Uranus and Neptune, condensing into diamonds
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Undergrad Do stars in the ecliptic seasonally change brightness?
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Stargazing Is this USB eyepiece camera a lemon?
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High School Meteor Photographed by Accident: Spectacular Green Bolide
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High School Creation and distribution of elements - looking for recommendations
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Undergrad Was the Ancient Universe More Compact Between 12,000 BC and 400 BC?
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High School Are Most Star Systems Composed Mainly of Light Elements?
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High School Will You Capture Jupiter and Saturn's Historic Conjunction?
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High School Earth & Moon Gravity Gradient: Investigating Its Impact
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Undergrad Infrared energy flux from the Moon
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Undergrad How Does Space Travel Affect Natural Aging?
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High School Nature: "A massive white-dwarf merger product before final collapse"
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High School Are subspaces of Hilbert space real?
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Undergrad Transparency of a gas compared to a plasma
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High School Can iron form via processes like the r- or s-process?
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High School Where do the electrons go? (in stellar nuclear fusion)
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Undergrad Gravitational lensing: deriving magnification of lensed image
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High School Snapped Cable Damages Arecibo Observatory Radio Telescope
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Undergrad How is Adaptive Optics Revolutionizing Our Understanding of the Galactic Center?
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Stargazing What do stars actually look like from up close?
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High School Question about things moving through outer space
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Undergrad Blackbody colour of metals versus stars
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Undergrad What are the Characteristics of a Perfect Meteorite?
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Undergrad Matter leaving a spinning galaxy
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Undergrad Astronomy in a Simple Solar System
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High School Question about Planck's Function
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Undergrad Could Planck Stars Explain Black Hole Bounce and Resolve Physics Paradoxes?
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Graduate What is a dynamic spectrum measurement?
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Graduate Is the Universe Undergoing an Infinite Series of Expansions and Contractions?
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Graduate How to calculate Helium lensing
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High School What causes orbits to be inclined?
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High School Does Jupiter have an angular momentum problem?
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