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 Can Black Holes Actually Emit Radiation?
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Undergrad When was Dark Matter Proposed After the Big Bang?
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Undergrad Why Aren't Concrete Spacers Required In Foundations?
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Graduate How Do Coiled Magnetic Fields in Black Holes Create Jets?
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Graduate Understanding Black Hole Singularity
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High School Balloon within a balloon question
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Stargazing Any suggestions for a good set of binoculars around $30?
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Winter is better for stargazing? Is it true?
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Graduate Dark Matter - what's the mystery?
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Graduate This is the question which is asked in this content.
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Undergrad How Does Gravity Affect Light in Black Holes?
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Undergrad How Did the Moon Achieve Orbit Without an Orbital Burn?
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Graduate Finding Longitudinal Data of Star Magnitudes in Surveys
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High School Comparing Matter & Antimatter Suns
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Graduate Gravity and Sinking Objects in a Galaxy-Sized Water Planet
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High School Why does the Moon rotate around the Earth?
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Graduate Researching Dual Planets in the Same Gravity Well
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High School GyratorIIVLFReceiver and 75 cm VLF loop antenne
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Do Black Holes and Dark Matter Interact?
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Graduate About time, size and light speed
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Graduate A doubt from the book Galactic Dynamics from Binney and Tremaine
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Undergrad Right Ascension and Declination to the Horizon
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Undergrad Can I accurately plot the orbits of our solar system's planets using equations?
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Undergrad Was Kepler the First to Measure the Distances from Earth to All Known Planets?
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Stargazing Can we see the solar eclipse after 600 million years?
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Graduate Units used on Voyager golden record
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High School Why Does Camera Flash Brighten Stars in the Sky?
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Undergrad Any transfer orbit better than Hohmann?
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Graduate Net gravitational pull from Mars
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Stargazing Mastering Telescope Collimation: Tips and Tricks for Perfect Alignment
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Graduate Calculating Gas Disturbance from a Supernova Explosion
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High School Do even torch lights twinkle in the sky?
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Thermal expansion coefficient of Jupiter
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High School Does twinklingdepends on the star or the distance?
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High School Why hasnt been artificial satellites torn apart?
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Graduate How did quasars form with such massive black holes?
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Undergrad Could Trojan Asteroids Have Caused Earth's Collision with the Moon?
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Undergrad What is the potential of tethers for space exploration and satellite propulsion?
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Graduate Detecting Multiple Planets Around a Star
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Undergrad A Jupiter-mass companion to a solar-type star
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Undergrad Bad programming skills = biggest hurdle to astronomy research
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High School Can someone calc these escape velocities?
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Graduate Can anyone help mess around with escape velocities?
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Graduate Can a planet or moon have two axes of rotation and remain tidally locked?
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Graduate Question regarding red shift and tired light hypothesis
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Undergrad Freshman project in astrophysics
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High School Proof of satellite revolve around earth in circular path
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Graduate Does the Reduced Mass Trace an Ellipse in a Rotating Two-Body System?
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Graduate Does nuclear decay apply to atoms of matter consumed by black holes?
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Graduate Path of light@ various distance from Black Hole
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Undergrad Gravity and Planetary Orbits: Ellipses, Circles or Hyperbolas?
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Graduate Astrophysics project gone wrong: why isn't the moon tearing the Earth apart?
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Graduate Can a region of space be free of energy?
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Undergrad What is the Point of Equal Gravity Between the Sun and Earth Called?
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Graduate Is light really affected by gravity?
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Undergrad Possibility of Betelgeuse exploding in near future
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Graduate Objects collapsing to black holes
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Undergrad Could Alpha Centauri Host Habitable Planets Despite Their Short Stability?
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Graduate What Are Universal Forces Made Of?
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Graduate Calculating the visibility of a satellite
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Undergrad Can somebody please explain Olbers' paradox to me?
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Graduate Is Dark Matter a Neutral Force That Interacts Without Annihilation?
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Graduate Black Hole: Conservation of energy
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High School Is the Earth's net charge really zero?
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Graduate Interpreting Gravitation: Orbits & Ellipticals
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Graduate Stability of a binary planet system
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Undergrad Help with HEALPix: Get Advice and Tips for Synfast & Anafast
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Graduate Black hole, time and observations
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Undergrad Converting Healpix file to traditional fits format
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Graduate Why Is the 21 cm Line Key in the Search for Extraterrestrial Intelligence?
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Undergrad Kepler Discovers Small Exoplanet
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Undergrad Is there a 'simple' YORP calculation
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Graduate Exploring the Effects of the Universe's Expansion on Faraway Galaxies
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Undergrad Origin of the Moon: Did Luck Play a Role?
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Since When Has Everything in the Known World Been Discovered?
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Graduate How did Kepler arrive at his equation without calculus?
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High School Uranus Rotates On 2 Poles? | Learn About Its Movements
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Graduate Gravitational Collapse of a Star
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High School 2 Bright things in the sky. Which 1 is Venus? And what's the other object?
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Undergrad How do astronomers count stars in the Milky way? (procedure, method)
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Undergrad Is gravity an infinite source of energy?
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Graduate Is Stephen Hawking's Black Hole Math Still Considered
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Undergrad Milky Way; How do we know it's a spiral?
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Graduate Circular restricted three body problem
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High School Where Is Dark Matter in Our Universe?
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Undergrad The number of space debris objects beyond the geostationary orbit
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Graduate Understanding Dark Energy and Its Impact on the Expansion of the Universe
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Graduate What is happening in distant galaxies like Andromeda at present?
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Undergrad How Can We Prove the Existence of Black Holes and Locate Them in Space?
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High School Do all stars belong to galaxies?
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Graduate What Happens to Lost Gravitational Energy in Degenerate Matter?
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Undergrad Hanny's Voorwerp imaged by Hubble.
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Graduate What Happens After a Star Fuses Hydrogen in Its Core?
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Undergrad Why doesn't ice in Saturn's ring sublime away?
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Undergrad Early Universe: Closer Galaxies, Big Bang Visibility?
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Undergrad Where Does the Energy Go When Gravity Changes an Asteroid's Trajectory?
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Novel-Travel inside the Black Holes
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Unexplained Sight: A Mysterious Star in the Night Sky | Discover the Truth
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Undergrad Could Europa's Subsurface Ocean Support Life?
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High School Sun disappearing thought experiment
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