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 How common for almost same solar eclipse 17 months later?
  • · Replies 2 ·
Replies
2
Views
2K
High School Is This the First Image of a Black Hole?
  • · Replies 1 ·
Replies
1
Views
1K
High School Gravitational Wave Interference Graphical Computer Simulation
  • · Replies 1 ·
Replies
1
Views
2K
High School Earth Orbits of Geostationary Satellites
  • · Replies 13 ·
Replies
13
Views
2K
High School Temperature regulation in Earth orbit
  • · Replies 9 ·
Replies
9
Views
2K
High School Orbits of galaxies in the Coma Cluster
  • · Replies 2 ·
Replies
2
Views
2K
High School Why can't we see dark matter in the solar system?
  • · Replies 22 ·
Replies
22
Views
5K
High School Absorption of electromagnetic radiation
  • · Replies 16 ·
Replies
16
Views
3K
High School How does the Earth move through in 3 separate trajectories?
  • · Replies 20 ·
Replies
20
Views
2K
High School Visual simulation of gravitational lensing
  • · Replies 5 ·
Replies
5
Views
3K
High School How Does Telescope Magnification Differ from Resolving Power?
  • · Replies 9 ·
Replies
9
Views
3K
High School Is there a standard mapping of celestial coordinates to geo-coordinates
  • · Replies 7 ·
Replies
7
Views
2K
High School Question about Preventing Tidal Locking around Red Dwarf Stars
  • · Replies 2 ·
Replies
2
Views
3K
High School Convection in Stars: The Role of Mass and Structure in Fuel Consumption
  • · Replies 16 ·
Replies
16
Views
7K
High School What Drives the Gravitational Waves in Black Hole Ringdown?
  • · Replies 13 ·
Replies
13
Views
4K
High School Red Dwarf Stars - Planet Habitability around "Flare Stars"
  • · Replies 1 ·
Replies
1
Views
2K
High School Does being tidally locked affect a planet's magnetic field?
  • · Replies 2 ·
Replies
2
Views
3K
High School Did anyone actually see the space moving faster than light?
  • · Replies 24 ·
Replies
24
Views
4K
High School How Do High-Speed Objects Traverse High-Temperature Gaseous Nebulas?
  • · Replies 3 ·
Replies
3
Views
3K
High School Can black holes truly be infinite?
  • · Replies 6 ·
Replies
6
Views
2K
High School Could singularities be just rips in the space-time fabric?
  • · Replies 23 ·
Replies
23
Views
6K
High School Previous thoughts on destroying asteroids were wrong: Nuking them is a bad idea
  • · Replies 10 ·
Replies
10
Views
3K
High School Black Holes: Observing & Understanding | Astrophysics
  • · Replies 3 ·
Replies
3
Views
2K
High School If Quark stars exist why do Neutron stars become Black holes?
  • · Replies 17 ·
Replies
17
Views
6K
High School For Lack of a Better Term....Moon Motion
  • · Replies 18 ·
Replies
18
Views
3K
High School How far back can we see with light?
  • · Replies 1 ·
Replies
1
Views
2K
High School Questions regarding energy in the universe
  • · Replies 3 ·
Replies
3
Views
3K
High School Question about time and its relation to spacetime
  • · Replies 9 ·
Replies
9
Views
28K
High School Photon Decoupling: Effects on Universe Expansion
  • · Replies 2 ·
Replies
2
Views
2K
High School Is the Rover Mission Halted Due to Dust-Covered Solar Panels?
  • · Replies 11 ·
Replies
11
Views
4K
High School How hard is it to track moon cycles
  • · Replies 28 ·
Replies
28
Views
5K
High School The unusual motion of stars in galaxies
  • · Replies 6 ·
Replies
6
Views
3K
High School Galaxy rotational curves vs time
  • · Replies 9 ·
Replies
9
Views
3K
High School How Old is the Milky Way Galaxy?
  • · Replies 12 ·
Replies
12
Views
4K
High School Is Dark Energy really the best term?
  • · Replies 7 ·
Replies
7
Views
3K
High School What Mysteries Lie Between the Galaxies?
  • · Replies 5 ·
Replies
5
Views
3K
High School Exoplanets - Suspicious evidence and fantastical conclusions
  • · Replies 21 ·
Replies
21
Views
5K
High School Why didn't the Moon go fully red for this eclipse?
  • · Replies 8 ·
Replies
8
Views
3K
High School Is There a Reference Point for the Expansion of the Universe?
  • · Replies 3 ·
Replies
3
Views
2K
High School Hyperloop - Orbital Space Launch
  • · Replies 28 ·
Replies
28
Views
6K
High School Earth from Space: What Would Hubble See?
  • · Replies 2 ·
Replies
2
Views
3K
High School Could Solar Radiation Explain 'Oumuamua's Strange Trajectory?
  • · Replies 6 ·
Replies
6
Views
3K
High School The Hubble WFC3 instrument has stopped working
  • · Replies 2 ·
Replies
2
Views
2K
High School Skydiving from Space -- maximum altitude?
  • · Replies 13 ·
Replies
13
Views
15K
High School How high can a helium baloon rise to space?
  • · Replies 18 ·
Replies
18
Views
13K
High School Are White Dwarves Turning into Galactic Disco Balls?
  • · Replies 1 ·
Replies
1
Views
2K
High School Further collapse of Neutron Stars
  • · Replies 4 ·
Replies
4
Views
2K
High School Another Andromeda-Milky Way "collision" question
  • · Replies 3 ·
Replies
3
Views
2K
High School Ideas to protect the Earth from possible asteroid impacts
  • · Replies 59 ·
2
Replies
59
Views
11K
High School Standard candles in a stretching fabric of space
  • · Replies 3 ·
Replies
3
Views
2K
High School Meaning of the Abbreviation CCH in Graphic
  • · Replies 2 ·
Replies
2
Views
1K
High School Discover 4 Milky Way Arms: Older Galaxies?
  • · Replies 10 ·
Replies
10
Views
4K
High School Water - Where do you think it came from?
  • · Replies 5 ·
Replies
5
Views
2K
High School Searching for the Ninth Planet: Solar System Migration
  • · Replies 5 ·
Replies
5
Views
2K
High School Interstellar Dust: What Blocks Light From Distant Galaxys?
  • · Replies 15 ·
Replies
15
Views
3K
High School Why most stars seem to rotate the same direction in a galaxy?
  • · Replies 6 ·
Replies
6
Views
2K
High School Why doesn't the moon fall down if it's just a big rock?
  • · Replies 9 ·
Replies
9
Views
3K
High School Parallax Limitations: Measuring Distances Miles Away
  • · Replies 4 ·
Replies
4
Views
3K
High School Is one side of the Earth faster at night and slower at daytime?
  • · Replies 10 ·
Replies
10
Views
9K
High School Does galaxy formation conserve mass and angular momentum?
  • · Replies 31 ·
2
Replies
31
Views
5K
High School Expanding Universe - Could It Be Rotating?
  • · Replies 7 ·
Replies
7
Views
2K
High School Does everything in space have or inherit inertia?
  • · Replies 33 ·
2
Replies
33
Views
4K
High School Can Black Holes Be Annihilated?
  • · Replies 6 ·
Replies
6
Views
7K
High School When light arrives at the end of space, what happens?
  • · Replies 49 ·
2
Replies
49
Views
8K
High School What is the Correct Formula for Calculating the Velocity of Saturn's Rings?
  • · Replies 3 ·
Replies
3
Views
3K
High School Does the Path of an Interstellar Object Curve Due to Solar System Movements?
  • · Replies 18 ·
Replies
18
Views
3K
High School Ratio of Earth-Sized exoplanets to other sizes of exoplanet?
  • · Replies 7 ·
Replies
7
Views
3K
High School No low-frequency emission from Fast Radio Bursts
  • · Replies 1 ·
Replies
1
Views
2K
High School Does dark matter interact with Baryons?
  • · Replies 4 ·
Replies
4
Views
2K
High School IB Extended Essay in Astrophysics
  • · Replies 4 ·
Replies
4
Views
6K
High School Barnard's Star, 6 Light-Years Away, May Have Cold SuperEarth
  • · Replies 8 ·
Replies
8
Views
3K
High School Parallel Spacetimes: Matter & Antimatter Separated?
  • · Replies 5 ·
Replies
5
Views
2K
High School Magnetospheric eternally collapsing objects
  • · Replies 3 ·
Replies
3
Views
2K
High School Was the universe is infinitely large at the big bang?
  • · Replies 11 ·
Replies
11
Views
3K
High School Why Doesn't Earth's Strong Gravity Crush Everything on Its Surface?
  • · Replies 14 ·
Replies
14
Views
3K
High School When a star exhausted it's nuclear fuel
  • · Replies 20 ·
Replies
20
Views
3K
High School What does it mean to say that "space" has a temperature?
  • · Replies 19 ·
Replies
19
Views
3K
High School What is the correct way to calculate the speed of the Great Red Spot on Jupiter?
  • · Replies 2 ·
Replies
2
Views
1K
High School Picture of the Day: Gas Swirling Around a Black Hole
  • · Replies 2 ·
Replies
2
Views
1K
High School Formation of Supermassive Black Holes
  • · Replies 3 ·
Replies
3
Views
2K
High School Why the multiverse makes no sense to me
  • · Replies 10 ·
Replies
10
Views
3K
High School New Plume on Mars - ESA Image Revealed
  • · Replies 12 ·
Replies
12
Views
3K
High School Rough probability that aliens would visit the Earth?
  • · Replies 45 ·
2
Replies
45
Views
8K
High School Calculating solar irradiance at each planet?
  • · Replies 10 ·
Replies
10
Views
4K
High School Exploring the Rare Earth & Gaian Bottleneck Hypotheses & the Drake Equation
  • · Replies 1 ·
Replies
1
Views
2K
High School Bose Stars (dark matter in origin)
  • · Replies 1 ·
Replies
1
Views
2K
High School Earth's orbit around the sun -- looking for an equation
  • · Replies 6 ·
Replies
6
Views
4K
High School Can the moon orbit be used as perpetual motion?
  • · Replies 5 ·
Replies
5
Views
2K
High School Formation of Hyperion System: How Planets Form Far from Stars
  • · Replies 1 ·
Replies
1
Views
1K
High School Can Modified Newtonian Dynamics Explain Dark Matter?
  • · Replies 3 ·
Replies
3
Views
2K
High School How much of a star undergoes fusion?
  • · Replies 24 ·
Replies
24
Views
5K
High School How does the Sun's magnetic field affect Earth's geomagnetic field?
  • · Replies 23 ·
Replies
23
Views
4K
High School Space is Discrete? Argument Explored
  • · Replies 28 ·
Replies
28
Views
3K
High School Why is the gravity of a neutron star stronger than that of its original star?
  • · Replies 6 ·
Replies
6
Views
3K
High School Black Holes -- What methods to use to find them?
  • · Replies 8 ·
Replies
8
Views
1K
High School Why don't man-made satellites drift away from the Earth?
  • · Replies 17 ·
Replies
17
Views
3K
High School Feasibility of a L1 Gravity Swing Cold Launch?
  • · Replies 18 ·
Replies
18
Views
3K
High School Uranus and/or Neptune Lab ideas
  • · Replies 11 ·
Replies
11
Views
3K
High School The geometry of the expansion of space
  • · Replies 5 ·
Replies
5
Views
2K
High School High School Astro Club: Teaching Astronomy in a City
  • · Replies 2 ·
Replies
2
Views
2K