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.
B Are there any SPH planet collision simulators?
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I Action Dynamics of the Local Supercluster
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B How did this Black Hole come to exist?
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I Can Hubble Red Shifts be Gravitational Red Shifts?
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I Holographic principle versus no-cloning
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I GW170608 - Another Binary Black Hole Merger Observed
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Maintaining interest in the new 'private' space race
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B Life is less likely on exoplanets
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B Debate about how a light year can be used
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Stargazing Southern Sky Image: View the Southern Cross, Coal Sack & Omega Centauri
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B Can the Sirius Star System Support Physical Life Amidst Its Unique Conditions?
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What Factors Influence the Habitability of Exoplanetary Systems?
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I Tidal effects on Earth's rotation and moon's orbit
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I Do Solar Tides affect Earth's Orbit?
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B Simulation: Our Solar System's Hyperbolic Residents
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B Jupiter's gravitational pull on the Sun and Earth
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I Where in our solar system are asteroids that contain ammonia
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I Unraveling the Mysteries of Gravity: From Light Bulbs to Spiral Galaxies
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I Can we experimentally understand the interior of a star?
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B Dark matter not found in globular clusters orbiting MilkyWay
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I Dark matter and energy may not exist?
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I Could vacuum decay save multiverse ideas?
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I What does wobbling in BGC reveal about the nature of dark matter?
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Stargazing How hard is it to find filtered color bands using telescope?
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I How Bright Would the Milky Way Look If It Had No Dust?
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I What % of the heavy elements are produced by kilonovas vs. supernovas?
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A Milancovitch cycles and how they relate to seasons
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B Spacetime: Real or Not? LIGO Lab Explores Ripples
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B Gravitational Wave Stretching: LIGO Arm vs Light
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B Did a Star Go Supernova Twice?
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I Magnetic field of Solar System planets
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B Acceleration of a proton/electron toward a neutron star
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B The bizarre rotation of galaxies
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B Sun's Expansion: Why Inner Planets Will Be Affected
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I Exoplanet Climate: Can Planets Have Multiple Liquid Layers?
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A What would happen if dark energy was injected into a black hole?
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B Could a brown dwarf passing through our solar system ignite Jupiter?
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I Resemblances between moon surface and earth mantle
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I Why is the Sun Yellow/Orange and Not White?
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Why aren’t more people interested now in physics & astronomy
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I Determining The Inclination Angle of A Stellar Binary System
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Stargazing Impact of Kepler Telescope Findings on the Drake Equation
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I First Chinese space station about to de-orbit soon
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B Is a planet's crust distinct from mantle because ....
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I How much number crunching is necessary in some simulations?
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What Are the Future Strategies for Space Exploration and Colonization?
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A Before the Big Bang - New videos - Cambridge university
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B Do Black Holes Exist? Maths & Singularity Explained
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I Nuclear batteries on space probes
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B Does Modern Astronomy have a problem?
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B Why is the asteroid belt located between Mars and Jupiter?
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B How does LIGO measure gravitational waves
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I Center of Image - Brightness Distribution
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I Dark Matter Simulation in Today's APOD
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Stargazing Stunning Telescope Photo of Vega Captured with 130mm Eyepiece - See the Beauty!
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I Enforcing artificial frozen orbit
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A Why Are These Accretion Disk Concepts Challenging?
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Is there a stellar type that would make Firefly possible?
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Stargazing Mysterious Evening Sky in Ireland - Solve the Mystery!
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B Should we search for non-biological "life"?
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B Apparent magnitude / absolute magnitude / luminosity
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I Is there an alternative theory to dark matter?
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I How to determine if an asteroid will burn up or hit Earth?
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B How Would an Extra Planet Behind the Sun Affect Earth's Gravity?
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B Wobbling galaxies: New evidence for dark matter
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I What is the difference between phase space and state-space?
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I Source of Heavier than Iron Nucleosynthesis
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Stargazing Is Binning the Key to Reducing Noise in Astrophotography?
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B How Do Electromagnetic Stellar Gravity Waves Simulate Sound at LIGO?
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Stargazing Telescope Guiding Techniques: Improving Exposure Times through Auto Guiding
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I Vibrations of astronomical bodies
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B We could lose electricity and satellites due to solar flares
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I Can a supernova produce multiple stars?
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Stargazing What will be the outcome of the NGC4993 neutron remnant collision?
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Insights Getting Started with Solar System Imaging - Comments
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Does gravitational collapse limit Neutron Star size?
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I Is it possible to have a black star?
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B Is the Edge of the Universe Defined by the Cosmic Microwave Background?
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I LIGO: How to Know Wave Direction?
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I Heavy elements from neutron star collisions?
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I Electromagnetism in the Lithosphere and Ionosphere
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I Neutron star merge why didn't all EM radiation came at once?
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B The star's core cannot withstand its own gravitational force?
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I Moving through space vs sitting in an expanding space
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B Dark matter and SMBH orbital decay
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I How does the solar wind affect power grids?
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I What Are the Leading Theories Explaining Dark Matter?
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B Ring Found Around Pluto Neighbor Haumea
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I Dark Matter Disc Evidence: New Possibilities in Milky Way Galaxy
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The Factors affecting the Orbitals of a moon
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I Actual number of stars in the Milky Way
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Stargazing What's the Best Telescope for Astrophotography Under $1,500?
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A Are period 5 elements common in most stars?
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I Methods of Hawking radiation generation
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Stargazing Focussing a Pentax K S2 with Live View for Moon Photography
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I Tight grouping of exoplanets 295RA 45dec
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Stargazing Looking for a beginner's telescope....
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Stargazing What was the reaction to the Hubble telescope's pictures?
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I Is the Sun considered a dwarf star?
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B Ball Lightning and Stars: Unveiling the Spectral Similarities
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