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 Type1a supernovae as evidence for an accelerating universe
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Undergrad Can Newton's Law Be Expressed as F=G\rho\rho1\frac{}{} d^{}2?
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Undergrad Phoenix craft to dig under Mars ice (landing planned 25 May)
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Undergrad How Come Planets Don't Fall Into Stars?
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Undergrad Gravity Pull: Calculating Time to Impact
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Undergrad Calculating Semimajor Axis of Meteor Orbit
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Undergrad Gravity and curvature in spacetime
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Undergrad Light Bending and Mass: Understanding the Effects of Gravity on Light
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Undergrad Earth's rotational speed in the past.
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Undergrad What Are Quasars? Explained by Hubble Telescope
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Undergrad What if Mars Had Been Closer and Venus Farther?
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Undergrad Solar Radiation AM - Danilo's Question
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Undergrad Why Syrius in the past was a red star?
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Undergrad When Will Earth Be Tidelocked To The Sun?
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Undergrad Understanding Vapor Pressure Laws for Astrophysics
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Undergrad Effects of a decreased rotation veloctiy
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Undergrad What is the Temperature of an Electron?
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Undergrad Sun formed on a core of a supernova?
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Undergrad Planet formation and star formation
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Undergrad Gravitation attraction proportioned
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Undergrad Black holes and magnetic fields?
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Undergrad Experience with the program 'Gaussfit'
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Undergrad Celestial body could to return tho the star for another perihelium?
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Undergrad Universal Warming: Other Inputs to Global Temperatures
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Undergrad Why Don't Low Mass Stars Progress Beyond Helium Burning?
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Undergrad Transfer function to state space manually
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Undergrad Conservation of Energy: Wave Pool in Universe?
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Undergrad Artificial Gravity: Methods & Benefits
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Undergrad Understanding Planetary Orbits: The Role of Gravitational Force and Rotation
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Undergrad Aerospace Engineering program at Texas A&M
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Undergrad Can the Universe's Shape Be Tested Like a Balloon?
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Undergrad What caused the disappearance of Mars's atmosphere and surface water?
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Undergrad Orbit of Comet 17P Holmes - equations
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Undergrad Mass and Traveling at the Speed of Light
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Undergrad Is 1 e33 kg the Minimum Mass of a Black Hole?
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Undergrad Parsecs, trigonometric parallax and light years
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Undergrad The red shift - what does it indicate?
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Undergrad How do we know that the universe expands?
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Undergrad When is the next 13.00 Local Sidereal Time for a UK observer?
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Undergrad Does the Universe have a centre?
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Undergrad Why Is There Lightning on Venus?
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Undergrad How are mass calculations done in the weightless environment of space?
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Undergrad How to Calculate the Flattening of a Rotating Planet?
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Undergrad Why are we still looking at Mars?
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Undergrad Artificial Gravity: Sci-Fi Possibility & Effects
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Undergrad Viewing size of Galaxies 7 Billion light years away?
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Undergrad Calculating Fuel Needed for Geosynchronous Orbit
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Undergrad Early Warning against Killer -Asteroids - current state, ideas
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Undergrad What is the Significance of a Secular Timescale?
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Undergrad How to find data on Earth, planets, motions
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Undergrad Is the Root 2 Relationship Valid for Orbital Mechanics on the Moon?
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Undergrad Hubble's Discovery of Cepheid Variable Stars in Galaxies
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Undergrad Ratio between Semi major and Velocity
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Undergrad Rotational Motion of Celestial Body
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Undergrad Apophis to impact earth in 2036?
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Undergrad Torque caused by/due to a galaxy's spin
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Undergrad Will a Toy Top Keep Spinning in Space?
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Undergrad Orbiting space station is observed to remain always vertically above
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Undergrad Will voyager 1 or 2 pass the heliopause
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Undergrad What is Dark Energy and How Does It Affect the Universe's Expansion?
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Undergrad Human versus robotic spaceflight
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Undergrad What would happen to Earth without the moon?
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Undergrad Gamma Ray burst in the Milkey Way
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Undergrad Why is the Earth getting closer to the sun and the moon getting farther away?
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Undergrad Naked-Eye Visible GRB: Witnessing Halfway Across All Creation
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Undergrad Why don’t planet hunters find black holes?
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Undergrad Why Does Earth's Axis Precess Like a Spinning Top?
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Undergrad Light Entering Black Hole: Observed or Not?
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Undergrad How Are Black Holes Detected and Measured?
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Undergrad Relation between earth position in orbit and its tilt
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Undergrad Can two stars have the same apparent but different absolute magnitudes
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Undergrad Earth/solar position vs spiral arms
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Undergrad What Material Makes Up Black Holes?
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Undergrad . Radio Spectroscopy -> Finding the doppler shift in a graph
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Undergrad Just a simple explanation please
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Undergrad Equatorial Bulge: Causes & Explanation
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Undergrad Can two planets inhabit the same orbit?
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Undergrad Just Checking - Calculating Angular Diameter of Moon
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Undergrad Calculating Absolute Magnitude of a Star - Red's Help
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Undergrad Advantage of measuring stellar parallaxes from Mars rather than Earth?
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Undergrad Satellite Right Acension and Declination Calculations
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Undergrad Are matter and energy equally represented
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Undergrad Measuring Distance: How Far Are Stars?
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Undergrad Would you expect comets to follow the ecliptic? Explain.
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Undergrad Where Can I Find the Radial Velocity of the Sun Relative to Earth?
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Undergrad Unveiling the Mystery: The Birth of Stars and the Role of Nuclear Fusion
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Undergrad Do Planets' Magnetic Fields Depend on Their Composition?
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Undergrad Rotation period vs. mass of planets in solar system
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Undergrad What caused the cooling of the universe?
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Undergrad Sun rotation difference (equator/latitude/pole)?
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Undergrad Earth's Orbit Change: Impact on Life - Will We Die?
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Undergrad Would Two Identical Planets Opposite Each Other Coalesce Over Time?
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Undergrad Can Gravity Really Repel? Understanding Gravitons and Common Misconceptions
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Undergrad The Milky Way is twice the size we thought it was
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Undergrad Protecting Craft from Solar Wind: How Far Does Our Magnetic Field Reach?
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Undergrad Human in outer space without space suit
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Undergrad Is Dark Matter Just Unseen Molecules?
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Undergrad Can Gamma Rays Reveal Their Source?
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Undergrad Estimating Photon Escape Time from Center of Sun
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Undergrad Creating a Planet of Sky and Clouds: Is it Possible?
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