Astronomy, Astrophysics, Cosmology Forum

Undergrad Is the amount of dark matter constant in the Universe?

Graduate Classifying Milky Way planets by what they´re bound to and originate from

Undergrad Galaxy GNZ11 33 billion light-years away

High School First ever recorded planetary engulfment

High School Does Sun cross planes of all binary stars?

Graduate Black Hole TON618 - Wavelength Spectrum

Stargazing Meridian flip with Losmandy German equatorial mount

Undergrad Will DESI confirm that the Universe isn't described by the ΛCDM model?

High School What is dark matter?

High School Is the Gaia Telescope's Shutdown Impacting Our Ability to Map the Milky Way?

Undergrad Why Do Nebulae only have Hydrogen, Oxygen and Sulfur?

Undergrad Why does jHelioViewer show more of the Sun's southern hemisphere in Stonyhurst grid?

High School Dark Matter Theory Endorsed By NASA

Undergrad Resolution of Peeble's ODE equation

High School An old spin to our Universe

Undergrad How can the universe be infinite if expansion started 13.8 billion years ago?

Undergrad Speediest Exoplanet System

High School CNO Cycle

Undergrad Can Staging Rockets Achieve Faster-Than-Light Travel Despite Relativity?

High School Possible explanations for meteor like observations?

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Undergrad Early large galaxy studies

Undergrad The initial density of an object and its compression into a black hole

High School Could the Big Bang originate from a black hole's white hole counterpart?

Undergrad Would a galaxy without dark matter disprove MOND?

Undergrad Cosmic ray origins

Stargazing Is There a New Planet Beyond Neptune?

Undergrad Integral identity in Tong's cosmology notes equation 1.19

Stargazing Merger of two black holes (video)

High School Brightness of different layers of the Sun

Graduate Understanding NOAA and Naval Observatory's Solar Calculations

High School Atmospheric refraction and "rainbow"

High School Analogue Black Holes: Disposal?

Undergrad How big a lunar radio telescope to detect Earth-like signals?

High School Question: Orbital mechanics of a binary star system

Stargazing Meteorite crash recorded on video in Canada

Undergrad What affects light near black holes and stars?

High School How do we know if a distant galaxy is matter or anti-matter?

High School More scope refurbishments or start new?

Stargazing How Did You Capture the Mars Occultation? Share Your Photos Here!

Undergrad Nature paper on Moon's initial evolution - Tidally driven remelting

Undergrad How did heavy elements like gold become so abundant throughout the universe?

Undergrad Moon phase ruins my Stargazing!

High School Equatorial mount RA and Dec joints spinning freely after disassembly

Undergrad Expansion of a star to become a red giant

High School Considering a budget observatory

Graduate Is there a stretching of the light curves of supernovae 1a?

Undergrad 3 questions about a paper on density fluctuations in the Universe

Undergrad How to graph Earth's path?

Undergrad Possibility of multiple planets sharing the same orbit?

High School Popular physics - The Nebra disk

High School Can a thunderstorm affect a satellite in low earth orbit?

Undergrad Is this the correct representation for showing the direction of a star on CMD?

Graduate Where to find black hole datasets

Graduate Spectral Data Availibility

Graduate Interpretation of an anticorrelation between 𝐻0 and log10(𝜔𝐵𝐷)

Stargazing Is My Heavy, Slightly Magnetic Rock with Green Glass Particles a Meteorite?

Undergrad Does light bend around black holes?

Undergrad The Boundary of the Observable Universe

High School Predicting frequency of Earthlike planets and systems

Undergrad How would the laws of thermodynamics change in a contracting universe?

Undergrad New Developments In The Search For Planet X

High School Looking for Axions in Neutron Stars

Undergrad Right ascension and Declination calculations

Undergrad Why do we still see the CMB today?

Graduate Black hole thermodynamics and accelerated expansion

Undergrad The brightness and linear polarization of pulsars

Undergrad Two-dimensional negative curvature space

High School Redshifts of nearby galaxies

High School 10s vs 15s exposures: choosing between image count and signal per frame

High School Strange cosmic particles in my detector

High School Variation of Apparent Luminosity with Distance

High School The Earth is upgrading with a second moon

Undergrad Distance at redshift z=0.666

High School Galactic Sheets and Voids

Undergrad Bose-Einstein and Fermionic condensates in space?

High School Asteroid 2024 RW1 - entered Earth's atmosphere over Luzon, Philippines

Undergrad What if the early expansion of the Universe was not so rapid?

Undergrad Does the amount of hidden mass remain constant?

Undergrad Rotation curve of a gas disk in an elliptical galaxy