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.
High School Explanation of Equatorial Coordinate System?
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High School Term for the path of the subsolar point
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High School How the planets get their spherical shape
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High School Hubble Telescope: What's the Big Flap/Door?
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High School Can someone explain thoroughly the celestial sphere
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High School Red shift of light from galaxies
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High School Is the total amount of water on the planet constant?
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High School Oxygen Needed for Combustion Propulsion in Outer Space
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High School Where Can I Find a Detailed Ecliptic Monitor for Tracking Solar Terms?
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High School Is Kepler 22 Visible from Earth with a Telescope?
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High School Which Layers of the Sun Emit Visible Light, UV, IR, and X-rays?
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High School Hubble Picture Crushes Your Sense of Scale
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High School Gravitational Force: What Causes It?
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High School Do less bright stars have redder spectrum?
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High School What Pope wanted Galileo to include in his book
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High School How Does Sunlight Reach the Moon During a Full Moon?
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High School Questions About Things in Orbit and Why They Don't Descend
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High School Enormous alien planet discovered
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High School What would happen to a human body exposed to space without a spacesuit?
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High School Understanding Planet Orbits & Revolutions Around the Sun
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High School Why Sun Rays Lose Heat in Space: Examining the Unknown
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High School Time lapse image of Comet ISON, what looks like snow?
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High School Are We Discovering New Stars in the Observable Universe?
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High School Can a Planet Collect Enough Mass to Become a Black Hole?
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High School Layperson's question regarding earth's rotational wobble
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High School Silly Question Re Distance and Time
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High School Is it possible for the earth to come off orbit and crash into the sun?
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High School Are galaxy orbiting around something?
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High School What is the Speed of the Lunar Terminator?
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High School How do clocks keep up with time?
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High School Compare weights at equator and poles?
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High School Shape of Universe: What is Its Form?
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High School Is black hole a theoretical concept or a natural phenomenon?
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High School Evidence of water found in Martian soil
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High School Why does Earth have an axial tilt
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High School Explaining Gravity: A Simple Question Answered for Kids by an Expert Astronomer
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High School Is the Sun Really White? Investigating a Crackpot Theory
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High School Do 'Space Rainbows' Exist Outside of Planetary Atmospheres?
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High School Is It Possible to Explore Comets with Today's Technology?
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High School Microscopic Alien life found on British Balloon?
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High School What is the sun's corona and how can it be captured in a photograph?
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High School What Makes the Cat's Eye Nebula's Core Appear So Energetic?
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High School Can we tell when a Star has died the moment it happens?
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High School Why Do Stars Appear to Move in a Four-Year Cycle?
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High School Phases of the Moon: Amateur Questions Answered
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High School Is there a temperature in the universe beyond Earth's atmosphere?
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High School Can I Use Microwaves to Study Asteroids?
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High School What is dark matter and dark energy, and how do we know they exist?
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High School Earth sized lava world discovered
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High School Why can't we whistle in a closed space?
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High School An Aurora Watch alert issued today
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High School Why is our moon exactly half when half?
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High School Our sun to soon reverse its magnetic field
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High School After Pluto what are new horizons plans?
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High School Are black holes related to the big bang?
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High School Amateur Astronomy - Learn What to Look For in the Sky
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High School Are Eclipse Glasses Truly Safe?
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High School Why are there 12 months in a year instead of 365?
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High School Gravity of Earth vs Sun to Moon: Which is Larger?
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High School Black Hole Destination: Final Stages, Next Steps, Reasons
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High School What is Big Bang? Why did it take place?
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High School Why Does a Hole in Paper Show an Eclipse Shadow?
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High School What Happens to Living Things That Enter a Black Hole?
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High School Stellar or Solar system Astronomy?
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High School Is what I saw - a meteor that was heading in my direction?
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High School Does Newton's Law of Gravitation Apply in Outer Space?
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High School Sun moves north as it sets in wunderground video
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High School What is the connection between hurricanes, spiral galaxies, and sunflowers?
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High School Answer Moon's Spin: Effects on Earth? | 9yo daughter's Q
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High School Black Holes & Stars - What Do We Know?
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High School Was the Bright Ball with Blue Light I Saw Through My Binoculars Saturn?
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High School Is the Earth-Moon System a Double Planet or Planet and Satellite?
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High School Why do 1A Supernovas always explode at the same exact point?
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High School Is the moon orbiting the earth at the same speed that earth spins?
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High School Floating Objects Affected by the Moon
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High School Need axial tilt info of earth daily
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High School Getting Started with DS9: A Beginner's Guide
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High School At which distance can you see Saturn's ring with a naked eye?
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High School What Caused the Bright Flash on the Moon on March 17, 2013?
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High School Static Universe vs Expanding Universe
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High School Consequence of light pointing towards a blackhole
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High School Why does everything in the Universe form a ball or Sphere?
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High School What is the shape of a Black Hole?
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High School Saturn hurricane spotted by Cassini
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High School Uncovering the Mystery: Comparing the Russian Meteor to the Tunguska Event
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High School Universe Expansion: Understanding the Concept
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High School Expanding Universe: What Does it Mean?
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High School Time taken for earth to orbit the sun?
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High School Jeans Mass Formula - Find Solution Now!
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High School Moon's Orbit: The Science Behind Its Path
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High School Why do black holes have such strong gravitational pull?
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High School Space and Matter: Does it Push Objects?
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High School Why do stars collapse in on itself ?
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High School Is it possible for a star to gain mass throughout it's life?
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High School Calculating the Kinetic Energy of a Meteor: What Factors Influence its Velocity?
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High School What is the Speed of Earth on its Orbit During Equinoxes and Solstices?
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High School The Earth as pendulum tied not to the Sun
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High School What is this galaxy? I can't work it out
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High School Is Earth Orbiting the Sun Dynamically?
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High School Why Does the Sun Bob Up and Down in its Orbit?
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