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.
Are Galaxies the Same Age if they are the Same Distance From Us?
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Can a solid planet become a star?
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What Are the Key Challenges Preventing Us from Occupying Space?
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Can a Gamma Ray Burst create a shadow on Earth from the Sun?
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Laser Communications in Outer Space
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IRAF can't deal with .fits files
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Is it Reasonable to Assume our Galaxy is in a Steady State?
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Gravity and Supernova - My understanding
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Acceleration of expanding universe question
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How Does Light Behave Near a Star?
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Light that is directed towards the center of a black hole
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Is space plasma the key to understanding dark matter?
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What Are Stephen Hawking's Greatest Contributions?
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What is the Composition of an Exoplanet 50 Light Years Away?
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What else do we know about dark matter?
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What is the Speed of the Lunar Terminator?
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Messier 45: Image from Oct 6th/2013
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Gamma ray bursts (GRB's) and the Ordovician Mass Extinction
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Dark matter comprises over 80% of the universe
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Info on tests done in the past for expanding universe
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How do clocks keep up with time?
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Compare weights at equator and poles?
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Shape of Universe: What is Its Form?
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Sunspot plotting and angular velocity
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Calculating the Distance and Parallax of a Star: A Practical Guide
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What happens to gravity in one dimension of space?
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Centrifuge and Radial Bouyancy in space
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Connection between right ascension and time
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Can Matter Be Transferred Between Universes?
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Can Extra Dimensions Solve the Central Singularity of Black Holes?
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How to calculate when an object will be directly
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How do atoms move through space?
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Is black hole a theoretical concept or a natural phenomenon?
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Values of Right Ascension which are best for an observer
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Predicting the Radius of the Sun as a Red Giant with SSM
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Is Euclidean space an affine space?
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Are galaxies net importers or exporters of mass/energy?
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Temperature & Survival at Big Crunch
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Accelerating, Expanding Universe Questions from a Novice
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Consumption of a galaxy by its central black hole
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Effects of super massive blackhole on galactic movement
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Evidence of water found in Martian soil
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Asteroid Impacting Venus: Will it Strike or Explode?
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Time & Gravity: How Much Slower on Earth?
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Why does Earth have an axial tilt
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Earliest Photons: Quark Era & Neutrino Decoupling
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Is the microwave background radiation still decreasing?
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War, space, and the evolution of Old World complex societies
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Is the Sun Really White? Investigating a Crackpot Theory
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Is the inner core of earth affected by the moon?
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How can I use the Newton Method to find the eccentric anomaly for Mars?
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Rewinding a black hole - Can a spinning black hole become a star?
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How Does Lower Moon Mass Affect Its Orbit Distance from Earth?
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Discovering the First Binary Star System: The Fascinating Binary System Story
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How Much Mass Energy Does a Black Hole Re-Radiate?
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Turn a sinusoid into a elliptic orbit
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Do 'Space Rainbows' Exist Outside of Planetary Atmospheres?
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Nature of radiation on interplanetary space exploration
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Is It Possible to Explore Comets with Today's Technology?
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Planetary habitability in proximity to nebulae
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Optimal Distance for Collision-Free Earth Orbit
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Voyager: at edge of our solar system
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Microscopic Alien life found on British Balloon?
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Is energy conserved in the expanding universe?
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Could Space Be an Energy Conversion Rather Than a Result of the Big Bang?
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Star is expected to be torn apart in the center of our Galaxy
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Is the Universe Expanding into Nothing or Something?
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Orbital period of eclipsing binaries
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Stargazing What Type of Brass Telescope Do I Have?
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Energy and mass, equal in amount in the universe?
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Question on Red shift applied to objects within the same galaxy
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How Does Heliocentric Julian Day Enhance Eclipsing Binary Analysis?
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Cosmic microwave background radiation
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Could dark matter be negative pressure
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How To Determine The Exact Speed You Are Moving In The Universe
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What is the sun's corona and how can it be captured in a photograph?
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Apparent magnitude of the Moon from Mercury?
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What Makes the Cat's Eye Nebula's Core Appear So Energetic?
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Can we tell when a Star has died the moment it happens?
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How Do You Calculate the Sunset Time on the Winter Solstice at 40 Degrees North?
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Do our inertial frames rotate with the Milky Way?
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The age old age of the universe question
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Could there be a connection between the cosmological background
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Why Do Stars Appear to Move in a Four-Year Cycle?
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We cannot measure the speed of light
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Looking for a decent gravity simulator
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Could meteorites contain evidence of troilite drainage and trapped iron grains?
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Why can we see space, but not time?
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Is there any relation between orbital motion and spin motion?
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Distance to the Sun using Venus transit
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Color temperature and effective temperature of a star
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Does ACE IMF Polarity Come from Bz Data?
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Improving Meteor Image Quality: Methods for Noise Reduction and Detection
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Shouldn't objects entering black holes be instantly shredded?
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Research topics in Variable stars
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Nutronstars - how they can put out light?
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Have we ever sent anything into the atmosphere of the gas giants?
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What Is the Orbital Length in Km on This Graph?
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Chances of hitting something in intergalactic travel
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More garbage science reporting about the sun
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