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 Can We Visualize One Dimensional Strings in Space Time?
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Undergrad Planet at barycenter of a binary system.
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Undergrad How would one know whether a star would be observable?
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Undergrad Why there are different size stars?
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Undergrad How Does Aerobraking Work for the ExoMars Orbiter?
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Undergrad Can a Torus be Gravitationally Bound?
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Undergrad Question about the cosmological constant
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Undergrad Gravitational Binding Energy of a Torus
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Undergrad KELT-4Ab Orbital Characteristics
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Undergrad Is an Aragoscope Currently in Use?
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Undergrad Convert to "Of Date" Apparent coordinates from "J2000" coordinates
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Undergrad What is the similarity between the spectra of white dwarfs and the sun?
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Undergrad Does the Sun's Movement Create a Solar System Vortex Motion?
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Undergrad What's Next for Astrogeology and Planetary Sciences?
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Undergrad Could "dark matter" be regions where Lambda is lower?
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Undergrad What happens to light when it reaches the edge of the universe?
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Undergrad Calculated solar irradiation not matching up with measured
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Undergrad Lift-off of ExoMars mission to find life on Red Planet
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Undergrad Are almost all stars in the night sky brighter than the Sun?
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Undergrad Direction of stars' orbits around galactic center
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Undergrad Binary system of a neutron star with a black hole
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Undergrad Asymmetric Tensor: Definition & Examples
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Undergrad How to Convert Plummer Distribution of Stars Parameters into Standard Units?
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Undergrad Could Planets Have Dual Cores Similar to Cell Structures?
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Undergrad Detecting organic compounds in interstellar dust
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Undergrad How to calculate kinematic distances in the Milky Way
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Undergrad How to determine an asteroid survey efficiency?
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Undergrad Rotation curve of galaxy Keplerian method
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Undergrad Extinct Curium 247 Found in Meteors
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Undergrad Early Earth: A Rapid Spin Through History
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Undergrad Plausibility of high density rocky planets
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Undergrad Directed panspermia mission to Mercury
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Undergrad Inconsistencies re Astronomical constants
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Undergrad Earth rotation different in hemisphere
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Undergrad Dark Matter Halo & Newton's Shell Theorem
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Undergrad Artificial Intelligence and astrophysics
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Undergrad Question about Orbits of Moon/Earth around Sun
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Undergrad Acceleration in an Elliptical Orbit
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Undergrad Kepler's third law for elliptical orbits
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Undergrad Increase in Radius when a Star becomes a Red Giant
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Undergrad What causes orbits to change over time?
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Undergrad Are researchers really this interested in 'Planet 9'
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Undergrad First manned mission to another planet
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Undergrad How diverse would a subterranean ocean be?
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Undergrad How are mathematical concepts translated into illustrations
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Undergrad How would Earth be affected by an additional smaller moon?
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Undergrad Galactic Orbit Variations: Impact on Night Sky View
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Undergrad What other explanations have physicists proposed for the birth of our universe?
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Undergrad Could Planets Exist in Intergalactic Space?
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Undergrad The Mystery of Elements in the Sun's Primordial Dust Cloud
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Undergrad Range of Earth's year within habitable zone?
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Undergrad How often do satellites pass the moon?
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Undergrad Center of Mass of separating Orbiting Mass
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Undergrad How to calculate light intensity?
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Undergrad Could 0.9c neutron star jets originate from the core?
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Undergrad Aerostat on Venus vs Surface Colony on Mars
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Undergrad Has Gravitational radiation been found
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Undergrad Space Travel Physics: Realistic 2D Simulation
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Undergrad Travelling at the speed of light
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Undergrad Two stars with the same mass equals the same luminosity?
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Undergrad What Are the Unique Properties of a Black Dwarf?
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Undergrad Venus' Synodic Year: Why Does It Take Longer Than Earth's?
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Undergrad How fast to shoot a bullet for it to hit the moon?
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Undergrad Why do pulsars emit electromagnetic waves from their poles?
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Undergrad How can I generate an elliptical orbit using only position and velocity data?
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Undergrad Hubble Finds Origin of Huge Cloud Crashing into our Galaxy
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Undergrad Concerning SOHO's orbit, and its corrections.
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Undergrad Why can we not see auroras at lower latitudes?
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Undergrad What are the negligible forces in the solar system besides gravity?
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Undergrad Spectra of Stars: Reliable Data & Quantitative Analysis
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Undergrad Geocentric model: how long was it taught in universities?
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Undergrad Can gravitational waves cancel out?
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Undergrad Black hole smaller than a neutron star?
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Undergrad Why Do Pluto and Charon Share the Same Diffraction Spike Orientation?
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Undergrad What if there was a black hole in the middle of a nebula?
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Undergrad Extraterrestrial Archaeological Expeditions?
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Undergrad Spectroscopy and the doppler effect
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Undergrad Trying to calculate Orbit figures with C# and 3D space
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Undergrad Quick question on orbital eccentricity and mechanical energy
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Undergrad Energy production of star given mass?
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Undergrad What Causes the Sun's Unusual Orbital Path in a Java Solar System Model?
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Undergrad Delta-v to overcome atmospheric and gravity drag at 13km?
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Undergrad Sun Orbits Center of Mass w/ Jupiter & Earth: How To Calculate?
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Undergrad Force required to "move" asteroid
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Undergrad Image Processing Software for Solar Astrophysics Research
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Undergrad Ball thrown from ISS to earth at right angle to it's path
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Undergrad Why they don't increase altitude of ISS to overcome drag
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Undergrad Abt seeing the Andromeda Galaxy with the naked eye in future
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Undergrad How Does Rosetta Maintain Orbit Around a Low-Gravity Comet?
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Undergrad There must be a center of the universe....?
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Undergrad Why is normal force in a satellite zero?
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Undergrad Two satellites A and B move around earth in a circular orbit
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Undergrad Will Radial Escape Velocity Launch a Satellite Into Orbit?
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Undergrad Can a Lost Spaceship Navigate Back to Earth in the Milky Way?
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Undergrad Drake Equation: Explaining N Value
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Undergrad Homemade Cosmic Microwave Background detector
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Undergrad Milky Way stole its farthest star cluster from another galaxy
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Undergrad Is It Possible to Do Photometry Without Using a CCD?
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Undergrad Space Travel to Mars: Overcoming Atmosphere & Creating a Bus Stop in Space
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Undergrad Galaxy and Stars: Questions Answered
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