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Astronomy and Astrophysics Forum

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.

Prefix: Undergrad

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Undergrad Where is a planet's gravity maximum?

Jul 14, 2017 · Replies 3 · Jul 15, 2017

Replies: 3

Views: 2K

Undergrad Calculation of the hour angle of the Sun

Jul 14, 2017 · Replies 1 · Jul 14, 2017

Replies: 1

Views: 5K

Undergrad Do stars have any lower mass limit?

Jul 11, 2017 · Replies 8 · Jul 12, 2017

Replies: 8

Views: 3K

Undergrad Observing Orbital Speed of stars within Galaxies

Jul 11, 2017 · Replies 7 · Jul 12, 2017

Replies: 7

Views: 3K

Undergrad Help with formula to calculate the precession rate change

Jul 5, 2017 · Replies 2 · Jul 10, 2017

Replies: 2

Views: 3K

Undergrad Measuring distance to a galaxy using natural H20 laser

Jul 7, 2017 · Replies 2 · Jul 7, 2017

Replies: 2

Views: 2K

Undergrad Solar system's path in the Milky Way galaxy

Jun 26, 2017 · Replies 19 · Jul 3, 2017

Replies: 19

Views: 7K

Undergrad Forming Asteroids: Dust, Gas & Vacuum Mysteries

Jun 22, 2017 · Replies 15 · Jul 2, 2017

Replies: 15

Views: 3K

Undergrad Reference point of geocentric lunar latitude?

Jun 27, 2017 · Replies 6 · Jun 30, 2017

Replies: 6

Views: 2K

Undergrad What would happen if I were 1 ly from a black hole merger?

Jun 26, 2017 · Replies 8 · Jun 29, 2017

Replies: 8

Views: 3K

Undergrad Why Doesn't the 11-Year Solar Cycle Affect the Sun's Magnetic Field?

Jun 25, 2017 · Replies 4 · Jun 26, 2017

Replies: 4

Views: 2K

Undergrad Why do galaxy and galaxy clusters look so colorful?

Jun 24, 2017 · Replies 14 · Jun 25, 2017

Replies: 14

Views: 3K

Undergrad Is there a consensus about the nature of dark matter?

Apr 5, 2017 · Replies 27 · Jun 24, 2017

Replies: 27

Views: 5K

Undergrad Dark matter and black hole interaction

Jun 7, 2017 · Replies 40 · Jun 23, 2017

2

Replies: 40

Views: 6K

Undergrad Explain about the information lost through black hole

Jun 22, 2017 · Replies 1 · Jun 22, 2017

Replies: 1

Views: 1K

Undergrad Could the Light Crowd in Orbiting Black Holes Over Billions of Years?

Jun 16, 2017 · Replies 4 · Jun 22, 2017

Replies: 4

Views: 2K

Undergrad How stuff in empty space cools down?

Jun 21, 2017 · Replies 18 · Jun 21, 2017

Replies: 18

Views: 2K

Undergrad Photon Sphere and time travel around a Black Hole?

Jun 21, 2017 · Replies 6 · Jun 21, 2017

Replies: 6

Views: 2K

Undergrad Large wavelength and "fitting into" small spaces

Jun 20, 2017 · Replies 2 · Jun 20, 2017

Replies: 2

Views: 2K

Undergrad Supernova - What would you see if watching one from close by?

Jun 17, 2017 · Replies 9 · Jun 17, 2017

Replies: 9

Views: 2K

Undergrad How Black Holes Form: Neutron Collapse & Supernovae

Jun 13, 2017 · Replies 9 · Jun 13, 2017

Replies: 9

Views: 2K

Undergrad Why use velocity dispersion in Faber Jackson relation

Jun 5, 2017 · Replies 1 · Jun 10, 2017

Replies: 1

Views: 2K

Undergrad Are Aliens Listening? Evidence for Intelligent Life in Space

May 1, 2017 · Replies 43 · Jun 10, 2017

2

Replies: 43

Views: 6K

Undergrad I cannot figure out what I saw in this picture, help me

Jun 4, 2017 · Replies 22 · Jun 8, 2017

Replies: 22

Views: 4K

Undergrad Direct collapse to black hole without supernova?

May 29, 2017 · Replies 8 · Jun 7, 2017

Replies: 8

Views: 3K

Undergrad About the Entropy of the Universe

May 16, 2017 · Replies 3 · Jun 3, 2017

Replies: 3

Views: 2K

Undergrad New Gravitational Wave Detection question

Jun 1, 2017 · Replies 15 · Jun 3, 2017

Replies: 15

Views: 3K

Undergrad Questions regarding dark matter dynamics

Apr 16, 2017 · Replies 65 · Jun 1, 2017

3

Replies: 65

Views: 9K

Undergrad Where to find full core-to-surface profiles of stars?

May 18, 2017 · Replies 1 · May 24, 2017

Replies: 1

Views: 2K

Undergrad Can an Atom Become a Black Hole?

May 17, 2017 · Replies 5 · May 17, 2017

Replies: 5

Views: 2K

Undergrad Understanding the Formation of Stars: A Look at Gravity, Gas Pressure, and Heat

May 10, 2017 · Replies 27 · May 15, 2017

Replies: 27

Views: 4K

Undergrad What is the Time Ordered Data set for CMB polarization?

May 10, 2017 · Replies 3 · May 14, 2017

Replies: 3

Views: 2K

Undergrad Mercury's precession due to other planets

May 13, 2017 · Replies 1 · May 13, 2017

Replies: 1

Views: 2K

Undergrad The Sun's habitable zone and orbital resonaces/stability

May 11, 2017 · Replies 1 · May 13, 2017

Replies: 1

Views: 2K

Undergrad Humidity when T is not constant in space

May 12, 2017 · Replies 3 · May 12, 2017

Replies: 3

Views: 1K

Undergrad What Causes the Ring Current in Earth's Magnetosphere?

May 11, 2017 · Replies 2 · May 12, 2017

Replies: 2

Views: 2K

Undergrad Sun's Magnetic Field, Global Warming

May 9, 2017 · Replies 10 · May 9, 2017

Replies: 10

Views: 2K

Undergrad Are quark stars a realistic solution to the black hole singularity problem?

May 4, 2017 · Replies 6 · May 7, 2017

Replies: 6

Views: 2K

Undergrad Sun elevation for ISS visibility

May 6, 2017 · Replies 2 · May 7, 2017

Replies: 2

Views: 2K

Undergrad Testing the information loss problem

Apr 29, 2017 · Replies 1 · May 7, 2017

Replies: 1

Views: 1K

Undergrad How far out are the probes that were sent out

Apr 27, 2017 · Replies 29 · May 6, 2017

Replies: 29

Views: 5K

Undergrad Where to find in-depth info about each star's composition?

Apr 29, 2017 · Replies 1 · Apr 30, 2017

Replies: 1

Views: 2K

Undergrad How do we know we are looking back in time in space?

Apr 1, 2017 · Replies 25 · Apr 30, 2017

Replies: 25

Views: 4K

Undergrad Can negative pions replace electrons in atoms?

Mar 7, 2017 · Replies 19 · Apr 29, 2017

Replies: 19

Views: 5K

Undergrad Questions about the lifecycle of stars

Mar 21, 2017 · Replies 77 · Apr 24, 2017

3

Replies: 77

Views: 9K

Undergrad Are White Dwarfs Stars? Understanding the Classification and Characteristics

Mar 22, 2017 · Replies 33 · Apr 22, 2017

2

Replies: 33

Views: 6K

Undergrad What causes retrograde rotation in planets and moons?

Mar 27, 2017 · Replies 8 · Apr 16, 2017

Replies: 8

Views: 2K

Undergrad Is a superflare capable of changing a planets orbit?

Apr 12, 2017 · Replies 18 · Apr 14, 2017

Replies: 18

Views: 3K

Undergrad Can we predict the Sun's path accurately?

Jul 24, 2016 · Replies 10 · Apr 14, 2017

Replies: 10

Views: 3K

Undergrad Question about a magnetic dynamo on tidally locked moons

Apr 9, 2017 · Replies 7 · Apr 11, 2017

Replies: 7

Views: 3K

Undergrad Defending the Earth from meteors using lasers

Mar 20, 2017 · Replies 44 · Apr 11, 2017

2

Replies: 44

Views: 6K

Undergrad Zero G Health Risk: Effects & Readjusting to Earth's Gravity

Apr 9, 2017 · Replies 1 · Apr 9, 2017

Replies: 1

Views: 2K

Undergrad Observation of photons from CMB by different observers

Apr 1, 2017 · Replies 7 · Apr 6, 2017

Replies: 7

Views: 2K

Undergrad Where on the Moon should the first Moonbase be?

Mar 20, 2017 · Replies 32 · Apr 5, 2017

2

Replies: 32

Views: 5K

Undergrad Explain the orbital physics of the JAXA Tether experiment?

Jan 31, 2017 · Replies 77 · Mar 29, 2017

3

Replies: 77

Views: 9K

Undergrad Would the rogue planet in this picture slow Earths spin?

Mar 26, 2017 · Replies 14 · Mar 29, 2017

Replies: 14

Views: 4K

Undergrad Length of lunar month immediately after moon's formation?

Mar 27, 2017 · Replies 1 · Mar 28, 2017

Replies: 1

Views: 1K

Undergrad Can a planet have multiple large moons?

Mar 27, 2017 · Replies 1 · Mar 28, 2017

Replies: 1

Views: 2K

Undergrad Mass and temperature relation in stars

Mar 15, 2017 · Replies 5 · Mar 27, 2017

Replies: 5

Views: 5K

Undergrad How Can I Improve My 2D Newtonian Gravity Simulator?

Mar 5, 2017 · Replies 7 · Mar 25, 2017

Replies: 7

Views: 5K

Undergrad Uncovering the Hidden Lepton Number of the Universe

Mar 23, 2017 · Replies 1 · Mar 23, 2017

Replies: 1

Views: 2K

Undergrad Clusters at center and periphery

Mar 23, 2017 · Replies 2 · Mar 23, 2017

Replies: 2

Views: 1K

Undergrad What causes the deceleration of a satellite? Space dust?

Mar 22, 2017 · Replies 4 · Mar 22, 2017

Replies: 4

Views: 2K

Undergrad Will interstellar travel become more possible in future

Mar 20, 2017 · Replies 22 · Mar 21, 2017

Replies: 22

Views: 3K

Undergrad On the Moon, could you melt dirt by focussing sunlight?

Mar 21, 2017 · Replies 1 · Mar 21, 2017

Replies: 1

Views: 1K

Undergrad Why are Lagrange points called libration points, and....

Mar 21, 2017 · Replies 4 · Mar 21, 2017

Replies: 4

Views: 2K

Undergrad Big rip - order of distintegration?

Mar 20, 2017 · Replies 1 · Mar 20, 2017

Replies: 1

Views: 1K

Undergrad Have you ever wondered why we can't see the other side of the moon?

Mar 15, 2017 · Replies 10 · Mar 18, 2017

Replies: 10

Views: 2K

Undergrad Do Red Dwarfs Favor Rocky Planets and Host Life?

Mar 17, 2017 · Replies 4 · Mar 17, 2017

Replies: 4

Views: 2K

Undergrad Can we colonize the Kuiper Belt?

Mar 10, 2017 · Replies 11 · Mar 17, 2017

Replies: 11

Views: 3K

Undergrad Guarding Mars' atmosphere with a magnetic shield

Mar 6, 2017 · Replies 24 · Mar 14, 2017

Replies: 24

Views: 3K

Undergrad Effect of planetary layer densities on trajectories of a satellite

Mar 13, 2017 · Replies 1 · Mar 13, 2017

Replies: 1

Views: 1K

Undergrad Was There Another Dimension Shaping Time Before Our Known Dimension?

Mar 9, 2017 · Replies 6 · Mar 12, 2017

Replies: 6

Views: 2K

Undergrad Could FRBs Power Extraterrestrial Light Sails?

Mar 9, 2017 · Replies 1 · Mar 10, 2017

Replies: 1

Views: 2K

Undergrad What is a Space-Time Crystal?

Sep 19, 2016 · Replies 3 · Mar 9, 2017

Replies: 3

Views: 2K

Undergrad Software for Analysis of FITS table/spectra

Mar 5, 2017 · Replies 11 · Mar 6, 2017

Replies: 11

Views: 3K

Undergrad What Causes GRBs: Ampere's Law or Something Else?

Mar 4, 2017 · Replies 1 · Mar 6, 2017

Replies: 1

Views: 2K

Undergrad What would happen if you moved a black hole?

Feb 27, 2017 · Replies 11 · Mar 5, 2017

Replies: 11

Views: 2K

Undergrad Effect of rotational inertia on gravity or visa versa

Mar 4, 2017 · Replies 5 · Mar 4, 2017

Replies: 5

Views: 2K

Undergrad Interstellar travel/centrifugal couching

Mar 1, 2017 · Replies 5 · Mar 2, 2017

Replies: 5

Views: 2K

Undergrad Find the Age of the Universe when Matter and Radiation densities were equal

Feb 28, 2017 · Replies 24 · Mar 2, 2017

Replies: 24

Views: 3K

Undergrad Is there any international astronomy competitions for adults

Sep 4, 2015 · Replies 5 · Feb 25, 2017

Replies: 5

Views: 2K

Undergrad Could ice exist in Lunar lava tubes?

Feb 20, 2017 · Replies 2 · Feb 21, 2017

Replies: 2

Views: 1K

Undergrad Why do quantum physicists claim that particles can tunnel out of a quantum well?

Feb 18, 2017 · Replies 6 · Feb 21, 2017

Replies: 6

Views: 2K

Undergrad Dark Matter Particles: College Student Seeking Theorem Evidence

Feb 20, 2017 · Replies 3 · Feb 20, 2017

Replies: 3

Views: 2K

Undergrad Quasars & Redshifts: Measuring Redshifts & Jet Formation

Feb 18, 2017 · Replies 2 · Feb 18, 2017

Replies: 2

Views: 2K

Undergrad Does Star's Mass Loss Challenge the Concept of Dark Energy?

Feb 13, 2017 · Replies 9 · Feb 16, 2017

Replies: 9

Views: 2K

Undergrad What's the Latest on Fast Radio Bursts?

Feb 9, 2017 · Replies 4 · Feb 14, 2017

Replies: 4

Views: 2K

Undergrad Calculating planet's radius using a star's luminosity

Feb 10, 2017 · Replies 32 · Feb 14, 2017

2

Replies: 32

Views: 7K

Undergrad Does the Debye Length Change with Applied Potential Strength in a Plasma?

Feb 13, 2017 · Replies 2 · Feb 13, 2017

Replies: 2

Views: 3K

Undergrad Requirements for a breathable atmosphere

Jan 30, 2017 · Replies 17 · Feb 13, 2017

Replies: 17

Views: 6K

Undergrad Why is there no "mid-Atlantic ridge" on other planets?

Feb 5, 2017 · Replies 15 · Feb 10, 2017

Replies: 15

Views: 4K

Undergrad What is the Dipole Repeller and How Does it Affect Our Galaxy's Motion?

Jan 30, 2017 · Replies 6 · Feb 2, 2017

Replies: 6

Views: 4K

Undergrad How can I have an image in space that I cannot reach out and feel with my hand?

Jan 26, 2017 · Replies 7 · Feb 1, 2017

Replies: 7

Views: 2K

Undergrad Level of unseen elastic scatterings

Jan 29, 2017 · Replies 6 · Jan 29, 2017

Replies: 6

Views: 1K

Undergrad Is proton decay considered in neutron star models (and LHC)?

Jan 27, 2017 · Replies 16 · Jan 28, 2017

Replies: 16

Views: 4K

Undergrad What would it take to hear the Sun's sound from Earth?

Jan 18, 2017 · Replies 12 · Jan 24, 2017

Replies: 12

Views: 3K

Undergrad Particle distribution as a function of radius in astrophysics

Jan 19, 2017 · Replies 3 · Jan 21, 2017

Replies: 3

Views: 1K

Undergrad Constraints on Dark Matter in the Solar System

Jan 16, 2017 · Replies 14 · Jan 20, 2017

Replies: 14

Views: 2K

Undergrad Can Spacetime be a Reference Frame?

Jan 20, 2017 · Replies 23 · Jan 20, 2017

Replies: 23

Views: 3K

Astronomy

Astronomy is the scientific study of celestial objects and phenomena beyond Earth's atmosphere. It encompasses the observation and analysis of stars, planets, galaxies, and other celestial bodies, as well as the broader exploration of the universe's origins, structure, and evolution.

Astronomers employ a variety of tools, including telescopes, satellites, and advanced instrumentation, to gather data and uncover the mysteries of the cosmos. The field addresses questions about the nature of dark matter, the expansion of the universe, and the potential for extraterrestrial life.

Astronomy not only contributes to our understanding of the cosmos but also inspires wonder and curiosity about the vastness and complexity of the universe we inhabit.

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