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 Space Cold: Is a Vacuum of Space Really Cold?
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Undergrad Earth's shadow in the atmosphere
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Undergrad Why are Black Holes such massive gravity pools?
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Undergrad Why does the sun's heat & light intensity decrease over AU distances?
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Undergrad Dimensions - how many are there in universe?
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Undergrad How does jupiter's moon get so hot?
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Undergrad Radiated Energy from the Sun: Is It Diminishing?
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Undergrad Forgotten force: The other great cosmic attractor
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Undergrad How Many Universes Exist in the Multiverse?
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Undergrad Calculating Mass Lost of Iron Asteroid Hitting Earth
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Undergrad How long do you expect transit to last?
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Undergrad Achievable orbit from launch location
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Undergrad Aphelion and Perihelion distance calculations
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Undergrad Temperature in Space: Is -273°C Possible?
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Undergrad Designs for a space station with artificial gravity
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Undergrad Simulated astrophysics equations
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Undergrad Orbits of objects of equal mass
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Undergrad Are Galaxies the Same Age if they are the Same Distance From Us?
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Undergrad What Are the Key Challenges Preventing Us from Occupying Space?
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Undergrad Can a Gamma Ray Burst create a shadow on Earth from the Sun?
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Undergrad IRAF can't deal with .fits files
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Undergrad Gravity and Supernova - My understanding
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Undergrad What else do we know about dark matter?
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Undergrad Dark matter comprises over 80% of the universe
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Undergrad Sunspot plotting and angular velocity
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Undergrad Calculating the Distance and Parallax of a Star: A Practical Guide
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Undergrad Connection between right ascension and time
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Undergrad Can Extra Dimensions Solve the Central Singularity of Black Holes?
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Undergrad What is a gravitational sling-shot?
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Undergrad How do atoms move through space?
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Undergrad Values of Right Ascension which are best for an observer
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Undergrad Asteroid Impacting Venus: Will it Strike or Explode?
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Undergrad Is the inner core of earth affected by the moon?
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Undergrad How can I use the Newton Method to find the eccentric anomaly for Mars?
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Undergrad Optimal Distance for Collision-Free Earth Orbit
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Undergrad Star is expected to be torn apart in the center of our Galaxy
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Undergrad Question on Red shift applied to objects within the same galaxy
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Undergrad How Do You Calculate the Sunset Time on the Winter Solstice at 40 Degrees North?
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Undergrad The age old age of the universe question
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Undergrad We cannot measure the speed of light
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Undergrad Is there any relation between orbital motion and spin motion?
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Undergrad Distance to the Sun using Venus transit
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Undergrad Research topics in Variable stars
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Undergrad Have we ever sent anything into the atmosphere of the gas giants?
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Undergrad What Is the Orbital Length in Km on This Graph?
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Undergrad More garbage science reporting about the sun
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Undergrad Will the Earth survive the Sun becoming a red giant?
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Undergrad Access Solar Radiation Data: UV-A, UV-B & UV-C
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Undergrad Planet formation vs Sun collapse
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Undergrad How does Jupiter protect Earth from comets and such?
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Undergrad Can Neutrino Detectors Predict Supernovae?
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Undergrad What methods are used to measure cosmic distances?
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Undergrad Is Shutting Down the Space Fence Putting Our Satellites at Risk?
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Undergrad How Does Hubble See Distant Galaxies Through Our Own?
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Undergrad JPL News: Centaurs' Origins Revealed with WISE Data
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Undergrad Can Traveling to Stars Reveal Earth's Past?
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Undergrad Where rest of inner solar system in Cassini picture from Saturn?
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Undergrad Positional Astronomy: Zenith, celestial poles and sidereal time
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Undergrad YouTube channel Life on Enceladus
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Undergrad Binary star revolving arround center of mass
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Undergrad What is the heliotail and how was it discovered by IBEX spacecraft?
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Undergrad How direction of satellite changes
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Undergrad Tidally locked planet's sun still moves?
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Undergrad How do you find the distance to the galaxies having equal diameter?
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Undergrad Mass of orbiting body calculations
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Undergrad Can the earth loose its orbit and regain its orbit again
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Undergrad Is the universe finite or infinite?
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Undergrad Center of the galaxy and the great attractor
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Undergrad What evidence supports the big bang theory?
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Undergrad Understanding Hubble's Constant: Debunking the Misconception of Its Name
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Undergrad How Does Object Collision Work in Space?
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Undergrad Is density of a material affected by gravity? If so
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Undergrad Why is the Moon's Gravity Uneven?
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Undergrad Confusion about the accelerating expansion of the universe and Hubble
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Undergrad Did a Giant Impact Start the Moon's Movement?
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Undergrad Delta V as a Function of Altitude
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Undergrad Are black holes bound to galactic revolution?
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Undergrad Can u'g'r'i'z' filters be converted to ugriz filters?
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Undergrad What Does Unusual Auroral Activity Mean in Astronomy?
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Undergrad Mars in Future: What's Ahead 1-3 Billion Years?
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Undergrad Brown Dwarf more massive than stars?
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Undergrad Had an, oh, that's how moment - Slingshot manuever
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Undergrad How many parsecs is it when the redshift z=1
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Undergrad How deep would you have to dig into Mars to reach Earth's gravity?
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Undergrad Rings & Tidal Locking: Formation Possibilities
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Undergrad Animating Solar System Evolution from Real Physics Data
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Undergrad After help understanding black drop effect
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Undergrad Why do stars appear to have different colors?
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Undergrad What to study to be an astronomer
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Undergrad Universe is speeding up? Are we traveling with it? Dark Energy.
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Undergrad Debunking the Myth: Why Exposing to Vacuum of Space Won't Make You Explode
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Undergrad Will the Moon Ever Escape Tidal Locking?
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Undergrad Is It Natural for the World to Have Zero Angular Momentum?
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Undergrad Why are all the orbits elliptical and not circular?
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Undergrad Functions for properties of stars and their planets
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Undergrad Shooting images through window pane glass
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Undergrad What is the shape of the known universe?
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Undergrad Calculate LST: Uncover the Mystery of 100.46
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Undergrad Example to make clear the difference between specific intensity and fl
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Undergrad The Ecliptic and the Galactic Planes
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