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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 of a Newbie: Iron Cores in Stars and Planets

Feb 22, 2006 · Replies 4 · Feb 24, 2006

Replies: 4

Views: 3K

Undergrad Computer Science in Astronomy: Essential Skills and Applications?

Feb 21, 2006 · Replies 3 · Feb 23, 2006

Replies: 3

Views: 4K

Undergrad Venus Synodic Period: Why 72 Degrees Away?

Feb 16, 2006 · Replies 1 · Feb 16, 2006

Replies: 1

Views: 9K

Undergrad Expanding Galaxies: Man Asks Question

Feb 11, 2006 · Replies 1 · Feb 11, 2006

Replies: 1

Views: 2K

Undergrad Reaching Equilibrium: Estimating Time to Balance

Feb 3, 2006 · Replies 16 · Feb 6, 2006

Replies: 16

Views: 5K

Undergrad Undergrad: General Astronomy Questions.

Feb 1, 2006 · Replies 3 · Feb 2, 2006

Replies: 3

Views: 4K

Undergrad Is Our View of the Milky Way Accurate or Just Another Galaxy?

Jan 27, 2006 · Replies 13 · Jan 31, 2006

Replies: 13

Views: 7K

Undergrad Could something be seen going the speed of light?

Jan 29, 2006 · Replies 4 · Jan 30, 2006

Replies: 4

Views: 2K

Undergrad So, what would happen if a comet the size of our moon collided with Venus?

Jan 26, 2006 · Replies 10 · Jan 30, 2006

Replies: 10

Views: 9K

Undergrad Infinite Gravity: Photons Particles w/o Mass?

Jan 29, 2006 · Replies 7 · Jan 29, 2006

Replies: 7

Views: 4K

Undergrad Small Comets, Dr Louis Rich, & Water In Space

Jan 20, 2006 · Replies 8 · Jan 28, 2006

Replies: 8

Views: 4K

Undergrad How Do We Calculate the Weight of Celestial Bodies in the Solar System?

Jan 20, 2006 · Replies 4 · Jan 24, 2006

Replies: 4

Views: 3K

Undergrad Is the Sun's Core Really Made of Iron?

Jan 22, 2006 · Replies 6 · Jan 24, 2006

Replies: 6

Views: 4K

Undergrad Horizons Mission: How Will the New Horizons Probe Leave the Solar System?

Jan 20, 2006 · Replies 2 · Jan 22, 2006

Replies: 2

Views: 2K

Undergrad Gravitational flux in solar system?

Dec 22, 2005 · Replies 6 · Jan 21, 2006

Replies: 6

Views: 4K

Undergrad Equitorial/Horizontal co-ordinate questions

Jan 21, 2006 · Replies 6 · Jan 21, 2006

Replies: 6

Views: 2K

Undergrad Vaporizing Black Holes: Does It Really Happen?

Jan 14, 2006 · Replies 8 · Jan 21, 2006

Replies: 8

Views: 3K

Undergrad How Does Jupiter's Gravity Affect Its Gas Composition?

Aug 11, 2005 · Replies 10 · Jan 20, 2006

Replies: 10

Views: 9K

Undergrad Will Stardust's Return Uncover Hidden Cosmic Secrets?

Jan 4, 2006 · Replies 16 · Jan 19, 2006

Replies: 16

Views: 4K

Undergrad NASA Observation: Cartwheel's Massive Rings

Jan 17, 2006 · Replies 3 · Jan 18, 2006

Replies: 3

Views: 2K

Undergrad Why don't stars explode? What holds them together?

Oct 28, 2005 · Replies 32 · Jan 12, 2006

2

Replies: 32

Views: 15K

Undergrad Planetary Orbits Around Black Holes

Jan 12, 2006 · Replies 2 · Jan 12, 2006

Replies: 2

Views: 2K

Undergrad Placing an Asteroid in Moon Orbit: Is It Possible?

Dec 27, 2005 · Replies 16 · Jan 11, 2006

Replies: 16

Views: 5K

Undergrad Finding the distance to an Asteroid

Jan 11, 2006 · Replies 2 · Jan 11, 2006

Replies: 2

Views: 3K

Undergrad How do the moon's & earth's orbital planes intersect?

Dec 31, 2005 · Replies 1 · Dec 31, 2005

Replies: 1

Views: 13K

Undergrad Understanding Negative Pressure: Physical Description Explained

Dec 27, 2005 · Replies 12 · Dec 30, 2005

Replies: 12

Views: 5K

Undergrad What Causes the Vibrant Cloud Colors on Jupiter?

Dec 28, 2005 · Replies 1 · Dec 29, 2005

Replies: 1

Views: 59K

Undergrad How Do We Know the Sun's Orbit Through the Galaxy?

Dec 27, 2005 · Replies 2 · Dec 28, 2005

Replies: 2

Views: 6K

Undergrad How do know if something is red-shifted without prior knowledge?

Dec 18, 2005 · Replies 4 · Dec 19, 2005

Replies: 4

Views: 2K

Undergrad Understanding the Earth-Moon Center of Mass and Its Effects on Lunar Orbit

Dec 16, 2005 · Replies 7 · Dec 16, 2005

Replies: 7

Views: 10K

Undergrad Does a Flat Universe Have an Edge?

Dec 12, 2005 · Replies 3 · Dec 14, 2005

Replies: 3

Views: 5K

Undergrad What is the true origin of gamma ray bursts?

Nov 23, 2005 · Replies 14 · Dec 9, 2005

Replies: 14

Views: 4K

Undergrad 4 Astronomy Problems: ASSISTANCE NEEDED PLEASE

Dec 4, 2005 · Replies 33 · Dec 7, 2005

2

Replies: 33

Views: 6K

Undergrad Kuiper Belt Info: Sidereal Period & Kepler's Equations

Dec 4, 2005 · Replies 4 · Dec 6, 2005

Replies: 4

Views: 3K

Undergrad Missing Galaxies? Visible Universe Mystery

Dec 2, 2005 · Replies 11 · Dec 4, 2005

Replies: 11

Views: 4K

Undergrad Is a Miniature Solar System Being Born?

Nov 30, 2005 · Replies 3 · Dec 3, 2005

Replies: 3

Views: 3K

Undergrad The Universe as big as a basket ball?

Nov 28, 2005 · Replies 6 · Nov 30, 2005

Replies: 6

Views: 12K

Undergrad Jupiter as a Gravitational lens?

Nov 27, 2005 · Replies 7 · Nov 30, 2005

Replies: 7

Views: 9K

Undergrad Edmund halley and the venus transit

Nov 26, 2005 · Replies 10 · Nov 29, 2005

Replies: 10

Views: 5K

Undergrad Why are our planets and galaxy in a plane shape?

Nov 23, 2005 · Replies 3 · Nov 24, 2005

Replies: 3

Views: 3K

Undergrad Why does a gas cloud spontanously rotate?

Oct 9, 2005 · Replies 12 · Nov 22, 2005

Replies: 12

Views: 8K

Undergrad Does Gravitational Attraction Cause Energy Transfer Between Celestial Bodies?

Nov 14, 2005 · Replies 3 · Nov 14, 2005

Replies: 3

Views: 4K

Undergrad What Do We Know About the Composition of Mars' Moons, Phobos and Deimos?

Nov 13, 2005 · Replies 2 · Nov 14, 2005

Replies: 2

Views: 3K

Undergrad Gravitational Lensing: Why Does it Only Create Clones?

Nov 9, 2005 · Replies 13 · Nov 14, 2005

Replies: 13

Views: 3K

Undergrad Seeing light from early Universe

Nov 9, 2005 · Replies 22 · Nov 13, 2005

Replies: 22

Views: 4K

Undergrad Why Does Venus Rotate Backwards?

Nov 4, 2005 · Replies 25 · Nov 8, 2005

Replies: 25

Views: 14K

Undergrad Why are geosynchronous orbirs in equatorial plane circular?

Oct 25, 2005 · Replies 13 · Nov 8, 2005

Replies: 13

Views: 5K

Undergrad IS IT POSSIBLE TO CREATE A TRANSPARENT SHIELD FOR SPACE STATIONS?

Nov 8, 2005 · Replies 2 · Nov 8, 2005

Replies: 2

Views: 3K

Undergrad [stars] Nuclear Fuel usage rate

Sep 8, 2005 · Replies 26 · Nov 7, 2005

Replies: 26

Views: 9K

Undergrad The maximum range of a missile_the earth is not flat

Nov 4, 2005 · Replies 1 · Nov 5, 2005

Replies: 1

Views: 3K

Undergrad Are There Tables Showing Distance vs. Red Shift of Stars?

Oct 27, 2005 · Replies 12 · Nov 5, 2005

Replies: 12

Views: 7K

Undergrad Specific definition of space in BB

Oct 29, 2005 · Replies 6 · Nov 3, 2005

Replies: 6

Views: 3K

Undergrad Where Does the First Second of the Universe Fall on the Time Line?

Oct 29, 2005 · Replies 2 · Oct 30, 2005

Replies: 2

Views: 4K

Undergrad How Do Scientists Counteract Radiation Pressure on Artificial Satellites?

Oct 26, 2005 · Replies 7 · Oct 29, 2005

Replies: 7

Views: 3K

Undergrad Understanding Dark Matter: Theories and Effects on the Cosmos

Oct 12, 2005 · Replies 76 · Oct 29, 2005

3

Replies: 76

Views: 13K

Undergrad How Did the Big Bang Create Atoms?

Sep 15, 2005 · Replies 38 · Oct 28, 2005

2

Replies: 38

Views: 12K

Undergrad Are Stars Perfect Black Bodies or Just Approximations?

Oct 28, 2005 · Replies 4 · Oct 28, 2005

Replies: 4

Views: 2K

Undergrad Is the Milky Way a Resonance-Ring Galaxy?

Aug 16, 2005 · Replies 13 · Oct 26, 2005

Replies: 13

Views: 5K

Undergrad New study shows Dark Matter isn't needed? Relativty explains it?

Oct 11, 2005 · Replies 67 · Oct 26, 2005

3

Replies: 67

Views: 12K

Undergrad Why Do All Galaxies Have a Supermassive Black Hole at Their Centre?

Oct 26, 2005 · Replies 1 · Oct 26, 2005

Replies: 1

Views: 3K

Undergrad Converting from the horizontal system to the equatorial system

Oct 23, 2005 · Replies 1 · Oct 24, 2005

Replies: 1

Views: 6K

Undergrad How do scientists put satellites into space

Oct 21, 2005 · Replies 5 · Oct 21, 2005

Replies: 5

Views: 3K

Undergrad How can I determine orbital elements using observations of an asteroid's motion?

Aug 22, 2005 · Replies 2 · Oct 21, 2005

Replies: 2

Views: 5K

Undergrad Is the inernal energy of the universe decreasing?

Oct 20, 2005 · Replies 1 · Oct 20, 2005

Replies: 1

Views: 3K

Undergrad Superman Holding the Moon: Is It an Impressive Feat?

Oct 15, 2005 · Replies 8 · Oct 19, 2005

Replies: 8

Views: 4K

Undergrad Deriving Equations for Moon's Orbital Acceleration

Oct 16, 2005 · Replies 1 · Oct 16, 2005

Replies: 1

Views: 7K

Undergrad Exploring the Habitable Zone and Tidal Lock in Exoplanet Systems

Oct 15, 2005 · Replies 1 · Oct 16, 2005

Replies: 1

Views: 5K

Undergrad How Do You Determine Visible Right Ascension and Declination Coordinates?

Oct 8, 2005 · Replies 15 · Oct 15, 2005

Replies: 15

Views: 11K

Undergrad How does the cosmic background radiation works

Oct 11, 2005 · Replies 2 · Oct 14, 2005

Replies: 2

Views: 2K

Undergrad Weak and strong anthropic principle

Oct 10, 2005 · Replies 17 · Oct 13, 2005

Replies: 17

Views: 5K

Undergrad What Would Happen to Gravity If Earth Stopped Spinning?

Oct 13, 2005 · Replies 3 · Oct 13, 2005

Replies: 3

Views: 3K

Undergrad Calculating Space Probe Trip to Neptune with Jupiter Assist

Oct 11, 2005 · Replies 2 · Oct 12, 2005

Replies: 2

Views: 4K

Undergrad Gravitational effect of sun on earth

Oct 9, 2004 · Replies 13 · Oct 12, 2005

Replies: 13

Views: 21K

Undergrad How Are Planets Detected Through Transit Method?

Oct 9, 2005 · Replies 1 · Oct 11, 2005

Replies: 1

Views: 2K

Undergrad What Are Physical Symmetries and How Do Particles Transform?

Oct 9, 2005 · Replies 6 · Oct 10, 2005

Replies: 6

Views: 2K

Undergrad Heat of objects entering an atmosphere?

Oct 8, 2005 · Replies 2 · Oct 8, 2005

Replies: 2

Views: 4K

Undergrad What Day Will You See the Same Star Rise at 10:40pm?

Oct 8, 2005 · Replies 5 · Oct 8, 2005

Replies: 5

Views: 7K

Undergrad Saturn's Moon Iapetus: Big Wall & Geology Mystery

Sep 29, 2005 · Replies 8 · Oct 4, 2005

Replies: 8

Views: 3K

Undergrad Is the LuniSolar theory a legitimate scientific theory?

Oct 1, 2005 · Replies 1 · Oct 1, 2005

Replies: 1

Views: 11K

Undergrad How do astronomers measure an objects angular size?

Oct 1, 2005 · Replies 7 · Oct 1, 2005

Replies: 7

Views: 10K

Undergrad Will the Expanding Universe Break the Attractive Forces Between Particles?

Sep 29, 2005 · Replies 11 · Sep 30, 2005

Replies: 11

Views: 3K

Undergrad Explore Venus: Mystery, Atmosphere & Surface Features

Jun 27, 2003 · Replies 6 · Sep 29, 2005

Replies: 6

Views: 6K

Undergrad Greek Astronomers & Telescopes: Determining Magnitude & Brightness

Sep 28, 2005 · Replies 4 · Sep 28, 2005

Replies: 4

Views: 2K

Undergrad How Can We Quickly Calculate Distances to Stars Without Parallax?

Sep 23, 2005 · Replies 3 · Sep 28, 2005

Replies: 3

Views: 2K

Undergrad Are Black Holes Responsible for Galaxy Formation?

Sep 25, 2005 · Replies 8 · Sep 27, 2005

Replies: 8

Views: 3K

Undergrad F=mv^2/r and Geosynchronouse orbits

Sep 23, 2005 · Replies 3 · Sep 25, 2005

Replies: 3

Views: 43K

Undergrad Galaxy Death: Is Starbirth Rate Decreasing?

Sep 21, 2005 · Replies 8 · Sep 24, 2005

Replies: 8

Views: 9K

Undergrad Is the Big Crunch a Mathematical Possibility for the Universe's End?

Sep 18, 2005 · Replies 2 · Sep 19, 2005

Replies: 2

Views: 3K

Undergrad Looking for an Introductory Book on Orbital Mechanics?

Sep 2, 2004 · Replies 3 · Sep 19, 2005

Replies: 3

Views: 6K

Undergrad Unraveling the Mystery of Dark Matter

Sep 18, 2005 · Replies 4 · Sep 19, 2005

Replies: 4

Views: 2K

Undergrad Question on stellar absorption spectra

Sep 10, 2005 · Replies 25 · Sep 14, 2005

Replies: 25

Views: 8K

Undergrad What are some recommended objects for a semester project in optical astronomy?

Sep 11, 2005 · Replies 1 · Sep 11, 2005

Replies: 1

Views: 2K

Undergrad Theories about the beginning of the universe

Sep 10, 2005 · Replies 1 · Sep 10, 2005

Replies: 1

Views: 2K

Undergrad Universe expansion and merging galaxies

Aug 31, 2005 · Replies 20 · Sep 8, 2005

Replies: 20

Views: 5K

Undergrad Saturn's Rings Shifting: New Findings

Sep 6, 2005 · Replies 3 · Sep 7, 2005

Replies: 3

Views: 3K

Undergrad Do Light Wavelengths from the Sun's Edges Differ from Its Center?

Jul 21, 2005 · Replies 11 · Sep 7, 2005

Replies: 11

Views: 5K

Undergrad Why Does Planet's Molten Core Create Magnetic Fields?

Jun 21, 2005 · Replies 28 · Sep 6, 2005

Replies: 28

Views: 5K

Undergrad Can a Galaxy Collapse Inward Over Time?

Sep 5, 2005 · Replies 3 · Sep 6, 2005

Replies: 3

Views: 4K

Undergrad For those who think life is rare

Aug 11, 2005 · Replies 57 · Sep 2, 2005

2

Replies: 57

Views: 8K

Undergrad What If the Earth's Orbit Was Changed?

Aug 29, 2005 · Replies 11 · Sep 2, 2005

Replies: 11

Views: 16K

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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