Mark this forum read Astronomy, Space Missions & Astrophysics
Thread / Author			Replies	Last Post
		What defines the inner boundary of the Oort Cloud? EllaL, 04-17-2026, 11:02 AM	4	04-17-2026, 11:02 AM Last Post : Gregory_C
		How can i tell Vega from Deneb and fix my backyard telescope alignment? Frank68, 04-10-2026, 03:53 PM	4	04-10-2026, 03:53 PM Last Post : GregoryNM
		How can i visualize the 3d geometry of shock fronts from x-ray maps? MasonRJ, 04-10-2026, 02:22 PM	4	04-10-2026, 02:23 PM Last Post : Frank28
		How can I visualize dark matter halos in merging galaxy clusters? Edward_T, 04-10-2026, 12:53 PM	0	04-10-2026, 12:53 PM Last Post : Edward_T
		How can we observe gravitational time dilation near a black hole with a telescope? JosephTM, 04-10-2026, 11:24 AM	4	04-10-2026, 11:24 AM Last Post : Emma2
		Why is atmospheric extinction affecting my photometry on a new 8-inch reflector? Tyler.M, 04-10-2026, 10:03 AM	4	04-10-2026, 10:03 AM Last Post : LilyW
		How can I visualize cosmic voids and huge empty regions of space? Sofia85, 04-08-2026, 10:38 PM	0	04-08-2026, 10:38 PM Last Post : Sofia85
		What keeps JWST at L2 without falling toward the Sun? VioletYB, 04-08-2026, 09:00 PM	4	04-08-2026, 09:01 PM Last Post : JonathanKJ
		How do the heavy element plumes in Cassiopeia A line up with the neutron star? OliviaDM, 04-08-2026, 07:33 PM	4	04-08-2026, 07:33 PM Last Post : Evelyn_L
		How do we tell a distorted galaxy is gravitational lensing or intrinsic shape? William72, 04-08-2026, 03:07 PM	4	04-08-2026, 03:07 PM Last Post : Evelyn.J
		What’s the difference between axial tilt and orbital inclination? EmilyVG, 04-06-2026, 06:42 PM	5	04-06-2026, 06:42 PM Last Post : FrankMD
		How does orbital velocity time dilation combine with gravity near a black hole? RonaldG, 04-06-2026, 05:13 PM	4	04-06-2026, 05:14 PM Last Post : PatrickL
		How do I calibrate my telescope photometer with interstellar reddening? LukeKJ, 04-06-2026, 01:01 PM	4	04-06-2026, 01:01 PM Last Post : Evelyn.J
		What’s the difference between a transit and an occultation in exoplanet signals? John_J, 04-06-2026, 11:19 AM	4	04-06-2026, 11:19 AM Last Post : Nicholas.T
		How does gravitational time dilation affect an object falling into a black hole? Mila.C, 04-06-2026, 09:54 AM	4	04-06-2026, 09:54 AM Last Post : MadisonBG
		What would the last photon look like with time dilation near a black hole? Donald.T, 04-06-2026, 08:25 AM	4	04-06-2026, 08:26 AM Last Post : Emily_G
		Why does dark matter separate from baryons in cluster mergers? Samuel.J, 04-06-2026, 06:54 AM	4	04-06-2026, 06:55 AM Last Post : OliverH
		What would a probe measure locally near a black hole's event horizon? Nora_T, 04-06-2026, 05:37 AM	7	04-06-2026, 05:37 AM Last Post : AriaXL
		What would an outside observer see when a clock falls into an event horizon? KevinOT, 04-06-2026, 03:57 AM	6	04-06-2026, 03:57 AM Last Post : Ella43
		What would time dilation look like to an orbiting observer near a black hole? EdwardS, 12-11-2025, 11:28 PM	12	02-01-2026, 02:27 PM Last Post : BrandonPS
		How does gravitational time dilation affect GPS satellite clocks? EvelynDW, 12-11-2025, 11:27 PM	14	02-01-2026, 02:27 PM Last Post : StellaET
		How do you keep astronomy logs current when star catalog names change? JerryRG, 12-11-2025, 08:34 PM	7	01-26-2026, 12:01 PM Last Post : Violet_B
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