Astronomy and Astrophysics Forum

Post thread
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.
High School What happens to the missing time?
  • · Replies 1 ·
Replies
1
Views
3K
High School Is This a Solar Flare?" - Investigating Possible Phenomenon
  • · Replies 2 ·
Replies
2
Views
3K
High School The dereference between; astrophysics, astronomy, cosmology and space science
  • · Replies 2 ·
Replies
2
Views
5K
High School Gravity between the Earth and the Moon
  • · Replies 3 ·
Replies
3
Views
4K
High School Question about momentum in vacuum of space
  • · Replies 2 ·
Replies
2
Views
5K
High School Astronomical-objects outside our own galaxy
  • · Replies 5 ·
Replies
5
Views
2K
High School Law of Gravity & Stars in Galaxy
  • · Replies 13 ·
Replies
13
Views
3K
High School Calculating how long ago light was emitted from a star?
  • · Replies 8 ·
Replies
8
Views
7K
High School We're no longer biggest star system
  • · Replies 23 ·
Replies
23
Views
6K
High School Do we know whats at the center of galaxies yet?
  • · Replies 3 ·
Replies
3
Views
4K
High School Can the Venus transit be viewed with the naked eye
  • · Replies 4 ·
Replies
4
Views
5K
High School Percent area of the universe is galaxy?
  • · Replies 3 ·
Replies
3
Views
2K
High School Gravity another question from a bus driver
  • · Replies 2 ·
Replies
2
Views
2K
High School Gravity a question from a bus driver:-)
  • · Replies 24 ·
Replies
24
Views
6K
High School Earth's magnetosphere historical data
  • · Replies 2 ·
Replies
2
Views
4K
High School How much would a laser spread out in space?
  • · Replies 4 ·
Replies
4
Views
5K
High School Solar Flare & CME: August 9, 2011 X6.9 Flare
  • · Replies 26 ·
Replies
26
Views
12K
High School What conditions must be met before star becomes a black hole?
  • · Replies 6 ·
Replies
6
Views
5K
High School What do the stars look like from space?
  • · Replies 12 ·
Replies
12
Views
21K
High School Are there other periodic phenomena's other than the comet Hally?
  • · Replies 4 ·
Replies
4
Views
4K
High School What Would Happen if Earth Had Two Moons?
  • · Replies 22 ·
Replies
22
Views
42K
High School Asteroid hits moon → moon hits Earth possible?
  • · Replies 68 ·
3
Replies
68
Views
83K
High School Asteroid, Meteorite, Meteoroid, or Meteor?
  • · Replies 11 ·
Replies
11
Views
6K
High School Science Fair Project Ideas for Astronomy
  • · Replies 3 ·
Replies
3
Views
6K
High School Effects on earth from a heavier moon
  • · Replies 2 ·
Replies
2
Views
4K
High School Do all stars have same revolving speed?
  • · Replies 8 ·
Replies
8
Views
4K
High School What Makes Black Holes So Mysterious: Do They Really Absorb Light?
  • · Replies 6 ·
Replies
6
Views
4K
High School How does and object get its color?
  • · Replies 6 ·
Replies
6
Views
6K
High School History of the Earth's Axial Tilt
  • · Replies 2 ·
Replies
2
Views
6K
High School What is the actual colour of the Sun?
  • · Replies 7 ·
Replies
7
Views
14K
High School Is there any star not belonging to any galaxy?
  • · Replies 5 ·
Replies
5
Views
3K
High School Hubble's Misconception and the Discovery of Other Galaxies within Our Universe
  • · Replies 14 ·
Replies
14
Views
4K
High School What is the opposite of a supernova
  • · Replies 24 ·
Replies
24
Views
17K
High School How do I find the age of a star?
  • · Replies 49 ·
2
Replies
49
Views
16K
High School Naked eye view from intergalactic space
  • · Replies 4 ·
Replies
4
Views
8K
High School Why Can We See Venus from Michigan?
  • · Replies 38 ·
2
Replies
38
Views
30K
High School What can i see with this? (astronomy on a budget)
  • · Replies 11 ·
Replies
11
Views
5K
High School Can you see stars from the surface of a ringed planet?
  • · Replies 3 ·
Replies
3
Views
4K
High School Tilt of the earth's axis. Why does it change?
  • · Replies 5 ·
Replies
5
Views
4K
High School Any idea on how to identify a celestial event?
  • · Replies 5 ·
Replies
5
Views
3K
High School Question About the Wow Signal from 1977
  • · Replies 10 ·
Replies
10
Views
11K
High School Why Can't I See the Milky Way in the City?
  • · Replies 16 ·
Replies
16
Views
12K
High School What is Gravity? How Does it Work & What Are Effects?
  • · Replies 3 ·
Replies
3
Views
2K
High School Going to Mars as a private company - How hard would it be?
  • · Replies 3 ·
Replies
3
Views
3K
High School Can Earth sustain much bigger object with an infinite weight?
  • · Replies 22 ·
Replies
22
Views
7K
High School How quickly does a star's supernova become apparent to the naked eye?
  • · Replies 4 ·
Replies
4
Views
4K
High School Witnessing a Sideways Half Moon: Michigan, USA
  • · Replies 28 ·
Replies
28
Views
38K
High School What is the minimum angular distance from the Sun for Venus to be visible?
  • · Replies 4 ·
Replies
4
Views
5K
High School Human Eyes See Cosmic Bubbles that Algorithms Miss
  • · Replies 4 ·
Replies
4
Views
4K
High School Was I Spotting Mars in the East?
  • · Replies 5 ·
Replies
5
Views
3K
High School Why do certain objects in space orbit others?
  • · Replies 3 ·
Replies
3
Views
3K
High School Intelligent Life on Europa Speculation
  • · Replies 7 ·
Replies
7
Views
8K
High School Jupiter-Venus Conjunction: How Often Does It Occur and How Can We Calculate It?
  • · Replies 2 ·
Replies
2
Views
5K
High School Huge solar flare heading for earth
  • · Replies 3 ·
Replies
3
Views
4K
High School Physics or Astronomy informative speech ideas?
  • · Replies 2 ·
Replies
2
Views
6K
High School Where are free online classes for Scientific Notation?
  • · Replies 3 ·
Replies
3
Views
2K
High School Understanding Gravity: Causes, Sources, and Strength Explained
  • · Replies 19 ·
Replies
19
Views
5K
High School My random thoughts about the sun, black holes, and gravity.
  • · Replies 1 ·
Replies
1
Views
4K
High School What is the difference between Astronomy, Astrophyics and Cosmology?
  • · Replies 4 ·
Replies
4
Views
36K
High School Has Anyone Explored Planetary Orbits Using Monkey Typewriter Method?
  • · Replies 27 ·
Replies
27
Views
4K
High School How do scientists monitor the Sun's activity?
  • · Replies 9 ·
Replies
9
Views
7K
High School Sunrise Direction in the South Pole
  • · Replies 3 ·
Replies
3
Views
3K
High School How big will the sun get when the seas begin to boil?
  • · Replies 5 ·
Replies
5
Views
4K
High School Comet Death Dive Into Sun Seen in Detail for 1st Time
  • · Replies 4 ·
Replies
4
Views
4K
High School Is Outer Space Truly Infinite? The Never-Ending Question of Exploration
  • · Replies 21 ·
Replies
21
Views
12K
High School Stationary Satellites: Can We Orbit at the Poles?
  • · Replies 11 ·
Replies
11
Views
4K
High School Which Has a Greater Gravitational Pull on Earth: Sun or Moon?
  • · Replies 26 ·
Replies
26
Views
10K
High School Why don't shooting stars make a noise?
  • · Replies 12 ·
Replies
12
Views
8K
High School What is a Geomagnetic Storm and How Does it Affect Earth?
  • · Replies 4 ·
Replies
4
Views
3K
High School Venus: Looking for Life Beyond Earth
  • · Replies 9 ·
Replies
9
Views
7K
High School Do Solar Flares Increase Sunburn Risk?
  • · Replies 1 ·
Replies
1
Views
5K
High School Pulsars: fluctuating speed of rotation?
  • · Replies 2 ·
Replies
2
Views
2K
High School Oxygen, and space what are the effects?
  • · Replies 16 ·
Replies
16
Views
4K
High School Possible Explanation for Red Flickering of Betelgeuse Star in the Night Sky
  • · Replies 8 ·
Replies
8
Views
19K
High School Do stars actually collide in galactic collisions?
  • · Replies 16 ·
Replies
16
Views
9K
High School Time Earth reached its Perihelion
  • · Replies 5 ·
Replies
5
Views
4K
High School Milky Way's Supermassive Black Hole to Light Up in 2013?
  • · Replies 9 ·
Replies
9
Views
6K
High School How do you write equations in LaTeX for both Windows and Mac?
  • · Replies 1 ·
Replies
1
Views
3K
High School Inserting proper symbols/letters for equations
  • · Replies 1 ·
Replies
1
Views
3K
High School Do eyepiece lengths affect telescope magnification?
  • · Replies 27 ·
Replies
27
Views
27K
High School Universe age?, I never really understood that
  • · Replies 18 ·
Replies
18
Views
7K
High School Nonexistence outside the universe
  • · Replies 15 ·
Replies
15
Views
5K
High School How to become an astrophysicist or an astronomer ?
  • · Replies 2 ·
Replies
2
Views
6K
High School Is it true that the earth's rotation is slowing down?
  • · Replies 6 ·
Replies
6
Views
6K
High School Difference between shock wave and shock ?
  • · Replies 2 ·
Replies
2
Views
4K
High School Indoor Astronomy: Viewing Options for Cold Places
  • · Replies 14 ·
Replies
14
Views
5K
High School Martian Pole Star: Same as Earth's?
  • · Replies 6 ·
Replies
6
Views
4K
High School What Causes Sunspots and How Do They Affect Solar Brightness?
  • · Replies 6 ·
Replies
6
Views
4K
High School Kepler22b-first exoplanet found in hab-zone of sun-like star
  • · Replies 37 ·
2
Replies
37
Views
15K
High School SECCHI Uncovers What? Near Mercury
  • · Replies 2 ·
Replies
2
Views
4K
High School Can the Mass of a Black Hole Bend Time and Space?
  • · Replies 5 ·
Replies
5
Views
3K
High School How realistic are the colors that we see in pictures of galaxies/nebulas?
  • · Replies 11 ·
Replies
11
Views
25K
High School Having trouble understanding how We are made from a supernova?
  • · Replies 12 ·
Replies
12
Views
11K
High School Few Question from a Naive Astro enthusiast
  • · Replies 6 ·
Replies
6
Views
3K
High School Can we get caught by surprise by an asteroid?
  • · Replies 13 ·
Replies
13
Views
6K
High School What Are the Orbital Periods of Binary Pulsars?
  • · Replies 3 ·
Replies
3
Views
4K
High School Can We Still Receive Images from Voyager Probes?
  • · Replies 11 ·
Replies
11
Views
6K
High School Belelgeuse turning into a supernovae
  • · Replies 11 ·
Replies
11
Views
5K
High School Viewing the Sun and Planets from the Asteroid Belt
  • · Replies 7 ·
Replies
7
Views
5K
High School Who Is Right About the Sun's Position and Size?
  • · Replies 5 ·
Replies
5
Views
4K