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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 Questions About Black Holes - Answers for Non-Physics Students

Aug 26, 2004 · Replies 8 · Aug 28, 2004

Replies: 8

Views: 2K

Undergrad Is the Parallax Method Still the Most Widely Used for Measuring Star Distances?

Aug 27, 2004 · Replies 4 · Aug 27, 2004

Replies: 4

Views: 8K

Undergrad Why Do Variable Stars Like R Hydra Exhibit Unique Color Changes?

Mar 3, 2004 · Replies 5 · Aug 26, 2004

Replies: 5

Views: 4K

Undergrad Why Does Gamma Ray Take 1M Years to Reach Star Surface?

Aug 23, 2004 · Replies 8 · Aug 24, 2004

Replies: 8

Views: 3K

Undergrad Is the Moon's Gravity Calculation Correct?

Aug 21, 2004 · Replies 9 · Aug 24, 2004

Replies: 9

Views: 3K

Undergrad Formula for sunset/rise times, moonrise/set and phases

Aug 21, 2004 · Replies 2 · Aug 21, 2004

Replies: 2

Views: 14K

Undergrad Doppler Effect: Does Light Obey the Rule?

Aug 20, 2004 · Replies 2 · Aug 21, 2004

Replies: 2

Views: 3K

Undergrad How do we detect x-rays from the center of our galaxy?

Aug 2, 2004 · Replies 14 · Aug 11, 2004

Replies: 14

Views: 5K

Undergrad Is Isaac Asimov's Moon-Planet Theory Valid?

Sep 30, 2003 · Replies 8 · Aug 11, 2004

Replies: 8

Views: 11K

Undergrad Is Bush's Vision for Space Exploration Grounded by Budget Cuts?

Jul 25, 2004 · Replies 16 · Aug 11, 2004

Replies: 16

Views: 3K

Undergrad Black holes do not collapse to singularity>

Jul 16, 2004 · Replies 18 · Aug 6, 2004

Replies: 18

Views: 6K

Undergrad Favoured theory for planetary formation

Aug 2, 2004 · Replies 7 · Aug 3, 2004

Replies: 7

Views: 3K

Undergrad Probability of Intelligent Life in Our Galaxy

Jul 29, 2004 · Replies 51 · Aug 2, 2004

2

Replies: 51

Views: 8K

Undergrad Space as a vacuum and earth's atmosphere

Jun 19, 2004 · Replies 9 · Aug 1, 2004

Replies: 9

Views: 7K

Undergrad Explaining 4D Space-Time in Simple Terms

Jul 30, 2004 · Replies 7 · Jul 30, 2004

Replies: 7

Views: 2K

Undergrad Why do neutron stars have magnetic fields

Jul 26, 2004 · Replies 4 · Jul 29, 2004

Replies: 4

Views: 10K

Undergrad What mass is lost after a hypernovae?

May 13, 2004 · Replies 10 · Jul 29, 2004

Replies: 10

Views: 4K

Undergrad Determining orbits from R.A., Dec, & time

Dec 2, 2003 · Replies 12 · Jul 29, 2004

Replies: 12

Views: 9K

Undergrad Black holes and dark matter holding galaxies together?

Jul 17, 2004 · Replies 9 · Jul 26, 2004

Replies: 9

Views: 6K

Undergrad Are There Non-Rotating Objects in Space?

Jul 24, 2004 · Replies 2 · Jul 25, 2004

Replies: 2

Views: 3K

Undergrad Gigantic Black Hole Collision: Andromeda & Milky Way

Jul 22, 2004 · Replies 19 · Jul 24, 2004

Replies: 19

Views: 4K

Undergrad Cause of Billiard Ball Spin: Celestial Connection?

Jul 22, 2004 · Replies 1 · Jul 23, 2004

Replies: 1

Views: 3K

Undergrad Why Does the Moon Cause Tides despite Sun’s Greater Force?

Jul 19, 2004 · Replies 13 · Jul 22, 2004

Replies: 13

Views: 5K

Undergrad Can Objects Enter a Black Hole from an Angle?

Jul 21, 2004 · Replies 8 · Jul 22, 2004

Replies: 8

Views: 3K

Undergrad Shock Wave in Space: Vacuum or Medium?

Jul 20, 2004 · Replies 4 · Jul 22, 2004

Replies: 4

Views: 4K

Undergrad Can Things Really Escape Black Holes?

Jul 17, 2004 · Replies 4 · Jul 18, 2004

Replies: 4

Views: 2K

Undergrad Hyperbolic interplanetary transfer

Jul 13, 2004 · Replies 2 · Jul 14, 2004

Replies: 2

Views: 4K

Undergrad Does the Sun's Changing Mass Affect Its Gravitational Pull on the Solar System?

Jul 7, 2004 · Replies 3 · Jul 9, 2004

Replies: 3

Views: 3K

Undergrad What Determines the Positioning of Protons and Electrons in the Van Allen Belts?

Jul 8, 2004 · Replies 1 · Jul 9, 2004

Replies: 1

Views: 3K

Undergrad What Makes Abell 2029 the Largest Known Galaxy in the Universe?

May 23, 2004 · Replies 7 · Jul 9, 2004

Replies: 7

Views: 5K

Undergrad Why are planetary systems almost complanary?

Jul 4, 2004 · Replies 6 · Jul 8, 2004

Replies: 6

Views: 2K

Undergrad Why Does the Universe Appear Redder Than Expected?

Jun 25, 2004 · Replies 36 · Jul 7, 2004

2

Replies: 36

Views: 6K

Undergrad How Does the Earth's Magnetic Field Affect Communication Systems?

Jul 2, 2004 · Replies 3 · Jul 7, 2004

Replies: 3

Views: 3K

Undergrad How they steered cassini through saturns rings

Jul 6, 2004 · Replies 3 · Jul 7, 2004

Replies: 3

Views: 2K

Undergrad Methane Cloud Found at Titan's South Pole

Jul 4, 2004 · Replies 9 · Jul 6, 2004

Replies: 9

Views: 4K

Undergrad WMAP has conclusively proven an expanding universe.

Jul 3, 2004 · Replies 7 · Jul 5, 2004

Replies: 7

Views: 3K

Undergrad Can Infinite Density in Black Holes Imply Infinite Mass?

Jun 1, 2004 · Replies 28 · Jul 5, 2004

Replies: 28

Views: 24K

Undergrad Geostationary Orbit: Why Equatorial Plane?

Jul 3, 2004 · Replies 2 · Jul 4, 2004

Replies: 2

Views: 3K

Undergrad How Can I Break Into the Space Industry?

Jun 30, 2004 · Replies 1 · Jul 1, 2004

Replies: 1

Views: 5K

Undergrad Could the age of the universe be older than we thought?

Jun 28, 2004 · Replies 28 · Jun 29, 2004

Replies: 28

Views: 5K

Undergrad A question about the sun and blackbody

May 2, 2004 · Replies 4 · Jun 25, 2004

Replies: 4

Views: 6K

Undergrad What Triggers Hydrazine Decomposition in Space?

Jun 13, 2004 · Replies 1 · Jun 23, 2004

Replies: 1

Views: 5K

Undergrad What happens to stars smaller than ours?

Jun 19, 2004 · Replies 7 · Jun 22, 2004

Replies: 7

Views: 4K

Undergrad What Causes Planetary Nebulae to Form?

Jun 21, 2004 · Replies 3 · Jun 22, 2004

Replies: 3

Views: 4K

Undergrad Evidence against existence of dark matter?

May 15, 2004 · Replies 3 · Jun 22, 2004

Replies: 3

Views: 4K

Undergrad Is the Red Shift of Distant Stars Really Due to Cosmic Expansion?

Jun 16, 2004 · Replies 3 · Jun 21, 2004

Replies: 3

Views: 3K

Undergrad Extra-solar Planets : Mass vs. Orbital Distance

Jun 14, 2004 · Replies 6 · Jun 19, 2004

Replies: 6

Views: 9K

Undergrad Sedna's Orbit: How Gravity Keeps it Tied to Our Solar System

Jun 17, 2004 · Replies 9 · Jun 18, 2004

Replies: 9

Views: 3K

Undergrad Are there advantages to launching space missions from the Arctic/North Pole?

Jun 9, 2004 · Replies 9 · Jun 18, 2004

Replies: 9

Views: 3K

Undergrad G.warming: something to wobble about

Oct 20, 2003 · Replies 10 · Jun 16, 2004

Replies: 10

Views: 3K

Poll

Undergrad Evaluate my brand new program satelite motion around earth

Jun 7, 2004 · Replies 5 · Jun 15, 2004

Replies: 5

Views: 3K

Undergrad Challenges of Life on Extra-Solar Planets: A Review of Latest Findings

Jun 12, 2004 · Replies 2 · Jun 14, 2004

Replies: 2

Views: 2K

Undergrad Transit of Venus mathematics please.

Jun 11, 2004 · Replies 2 · Jun 12, 2004

Replies: 2

Views: 4K

Undergrad Voyager: How Did They Navigate Unknown Worlds?

Jun 9, 2004 · Replies 7 · Jun 12, 2004

Replies: 7

Views: 3K

Undergrad How Does Gravity and Center Influence Orbit in Astro-Physics?

Jun 10, 2004 · Replies 8 · Jun 12, 2004

Replies: 8

Views: 3K

Undergrad Odd Black Hole Defies Explanation : space.com

Jun 9, 2004 · Replies 3 · Jun 9, 2004

Replies: 3

Views: 4K

Undergrad Most complex extraterrestrial molecule

Jun 7, 2004 · Replies 10 · Jun 9, 2004

Replies: 10

Views: 5K

Undergrad Temp increase of sun from photosphere to corona

Jun 7, 2004 · Replies 5 · Jun 9, 2004

Replies: 5

Views: 9K

Undergrad Where can I find comprehensive formulas for Celestial Mechanics?

Feb 17, 2004 · Replies 9 · Jun 6, 2004

Replies: 9

Views: 5K

Undergrad How Do I Convert the Gravitational Constant to Pixels?

Jun 6, 2004 · Replies 1 · Jun 6, 2004

Replies: 1

Views: 3K

Undergrad Dual Planetary Life: Is It Possible?

Jan 16, 2004 · Replies 11 · Jun 6, 2004

Replies: 11

Views: 5K

Undergrad Redshift & Expansion: What Else Is There?

Jan 16, 2004 · Replies 32 · Jun 3, 2004

2

Replies: 32

Views: 6K

Undergrad A simple explination of why clocks move faster in space

Dec 9, 2003 · Replies 19 · Jun 3, 2004

Replies: 19

Views: 13K

Undergrad What Would a Martian Calendar Look Like for Well-Established Colonies?

Jun 2, 2004 · Replies 5 · Jun 3, 2004

Replies: 5

Views: 5K

Undergrad Calculate the gravitational field of a object

Jun 1, 2004 · Replies 2 · Jun 2, 2004

Replies: 2

Views: 2K

Undergrad What are the Characteristics of Short Gamma Ray Bursts?

May 1, 2004 · Replies 13 · May 31, 2004

Replies: 13

Views: 4K

Undergrad Understanding Galaxy Formation and the Factors Influencing Their Size

May 28, 2004 · Replies 3 · May 30, 2004

Replies: 3

Views: 3K

Undergrad Looking for a *3D navigable* star map.

May 21, 2004 · Replies 8 · May 29, 2004

Replies: 8

Views: 9K

Undergrad How Can I Simulate a Star Collision on a Computer?

May 24, 2004 · Replies 2 · May 29, 2004

Replies: 2

Views: 2K

Undergrad Neutron stars seem an oddity to me

May 27, 2004 · Replies 7 · May 28, 2004

Replies: 7

Views: 3K

Undergrad Why can't we go to the center of the galaxy?

May 20, 2004 · Replies 37 · May 25, 2004

2

Replies: 37

Views: 16K

Undergrad Questioning Saturn's Rings: Debunking the Myth of a Young Universe

May 21, 2004 · Replies 7 · May 25, 2004

Replies: 7

Views: 5K

Undergrad Benefits of a Math Minor for an Astrophysics Major

May 10, 2004 · Replies 6 · May 20, 2004

Replies: 6

Views: 2K

Undergrad Methane On Mars (Keeps Increasing)

May 18, 2004 · Replies 3 · May 19, 2004

Replies: 3

Views: 3K

Undergrad What is the calculated mass of a post supernovae star

May 13, 2004 · Replies 6 · May 18, 2004

Replies: 6

Views: 5K

Undergrad Massive Stars Found in Spitzer Reveals Hidden Cloud

May 7, 2004 · Replies 5 · May 13, 2004

Replies: 5

Views: 3K

Undergrad First Photo of planet circling another star

May 12, 2004 · Replies 4 · May 12, 2004

Replies: 4

Views: 6K

Undergrad Methane Everywhere (I Told You All)

Apr 4, 2004 · Replies 24 · May 3, 2004

Replies: 24

Views: 7K

Undergrad Equator Day Length for Zero Gravity: What's the Answer?

Apr 1, 2004 · Replies 14 · May 3, 2004

Replies: 14

Views: 8K

Undergrad How Accurate is the Current Value for 1 AU?

Apr 29, 2004 · Replies 5 · May 3, 2004

Replies: 5

Views: 13K

Undergrad The angular size of stars - prac astronomy

May 2, 2004 · Replies 3 · May 3, 2004

Replies: 3

Views: 7K

Undergrad Does an infinite universe effect an infinite outlook?

Apr 5, 2004 · Replies 11 · Apr 28, 2004

Replies: 11

Views: 6K

Undergrad Does Earth's Size Affect Your Weight?

Apr 28, 2004 · Replies 1 · Apr 28, 2004

Replies: 1

Views: 2K

Undergrad Educational value of going through a Hoagland webpage?

Apr 19, 2004 · Replies 22 · Apr 28, 2004

Replies: 22

Views: 4K

Undergrad Expanding universe and absolute zero

Apr 20, 2004 · Replies 14 · Apr 27, 2004

Replies: 14

Views: 4K

Undergrad Calculating Solar Sail Size for Propulsion Against Sun's Gravitational Force

Apr 26, 2004 · Replies 3 · Apr 26, 2004

Replies: 3

Views: 7K

Undergrad Energy and the end of the universe.

Apr 21, 2004 · Replies 4 · Apr 22, 2004

Replies: 4

Views: 3K

Undergrad Is Jupiter Losing Its Spots?

Apr 22, 2004 · Replies 1 · Apr 22, 2004

Replies: 1

Views: 2K

Undergrad Do All Man-Made Solar Satellites Share the Same Orbit Orientation?

Apr 21, 2004 · Replies 2 · Apr 21, 2004

Replies: 2

Views: 3K

Undergrad How Can Gravity Be Simulated for Space Travelers?

Apr 14, 2004 · Replies 23 · Apr 20, 2004

Replies: 23

Views: 4K

Undergrad Why do we believe ultra high energy cosmic rays come from supernovae?

Apr 14, 2004 · Replies 1 · Apr 14, 2004

Replies: 1

Views: 2K

Undergrad What Fascinating Discoveries Await on Titan?

Apr 13, 2004 · Replies 1 · Apr 13, 2004

Replies: 1

Views: 4K

Undergrad Experts Call on Senate for Support for Near-Earth Object Search

Apr 9, 2004 · Replies 3 · Apr 12, 2004

Replies: 3

Views: 2K

Undergrad Can a Bright Flash in Space Help Detect Dark Objects Beyond Pluto?

Apr 2, 2004 · Replies 32 · Apr 12, 2004

2

Replies: 32

Views: 5K

Undergrad Age of universe compared to age of sun.

Mar 27, 2004 · Replies 9 · Apr 11, 2004

Replies: 9

Views: 7K

Undergrad Good astrophysics schools in california

Apr 10, 2004 · Replies 3 · Apr 11, 2004

Replies: 3

Views: 12K

Undergrad Why do celestial bodies orbit in such precise speeds and patterns?

Apr 9, 2004 · Replies 4 · Apr 10, 2004

Replies: 4

Views: 3K

Undergrad What is the cause of the mysterious blue band surrounding Jupiter?

Mar 8, 2004 · Replies 14 · Apr 8, 2004

Replies: 14

Views: 4K

Undergrad Discover the Best Books on Celestial Mechanics - Recommendations Inside!

Feb 20, 2004 · Replies 6 · Apr 7, 2004

Replies: 6

Views: 5K

Undergrad If Today's Phoboday, this must be Mars.

Mar 31, 2004 · Replies 2 · Apr 6, 2004

Replies: 2

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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