Forum: Astronomy & Cosmology

The scientific study of matter in outer space and the astrophysical study of the history, structure, and constituent dynamics of the universe..

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Sticky: Interesting astronomical events and observing tips Started by ricci70, October 20th, 2008 04:23 AM 2 Pages • 1 2	Replies: 131 Views: 38,334	Last Post By Paleoichneum August 28th, 2021, 01:56 PM
Sticky: The basis of modern cosmology Started by DrRocket, January 4th, 2011 01:05 AM	Replies: 25 Views: 14,870	Last Post By Dishmaster September 20th, 2011, 05:34 PM
Sticky: Rules on homework help - READ THIS BEFORE POSTING OR HELPING Started by Dishmaster, November 15th, 2008 01:28 PM	Replies: 0 Views: 26,309	Last Post By Dishmaster November 15th, 2008, 01:28 PM

The Webb Space Telescope : Flight, deployment, and L2 destination. Started by Double Helix, January 1st, 2022 05:05 PM	Replies: 21 Views: 550	Last Post By Double Helix January 24th, 2022, 03:15 PM
Opposite of FTL Barrier? Started by zinjanthropos, January 11th, 2022 01:47 PM	Replies: 9 Views: 266	Last Post By The Raven January 19th, 2022, 04:03 AM
Can Sirius go supernova? Started by Kevin_Hall, January 13th, 2022 09:32 AM	Replies: 2 Views: 198	Last Post By Double Helix January 13th, 2022, 12:57 PM
Can we remake plastic waste into rocket fuel? Started by Kevin_Hall, January 4th, 2022 02:16 PM	Replies: 4 Views: 220	Last Post By Kevin_Hall January 13th, 2022, 09:59 AM
Europa Clippper - A search for life on an icy moon! Started by Double Helix, January 7th, 2022 01:03 PM	Replies: 0 Views: 180	Last Post By Double Helix January 7th, 2022, 01:03 PM
Ebb and flow Started by Kevin_Hall, January 6th, 2022 01:10 PM	Replies: 2 Views: 185	Last Post By Janus January 7th, 2022, 11:02 AM
Happy New Year from the ISS Started by Kevin_Hall, December 31st, 2021 11:47 AM	Replies: 1 Views: 224	Last Post By exchemist December 31st, 2021, 04:47 PM
How Can the WebbTelescope Orbit L2? Started by exchemist, December 30th, 2021 04:43 PM	Replies: 1 Views: 244	Last Post By Double Helix December 30th, 2021, 07:25 PM
Praise be upon ESA and CSA - Ariane 5's successful launch of the Webb Space Telescope!! Started by Double Helix, December 25th, 2021 11:54 AM	Replies: 4 Views: 304	Last Post By Double Helix December 26th, 2021, 02:09 PM
What if space doesn't exist? Started by JackWhite, December 24th, 2021 05:59 AM	Replies: 8 Views: 325	Last Post By geordief December 24th, 2021, 09:08 PM
Antimatter hides in the Milky Way Started by Kevin_Hall, December 23rd, 2021 06:04 AM	Replies: 3 Views: 285	Last Post By Double Helix December 23rd, 2021, 08:15 PM
Interstellar probe planned for new space mission!! Started by Double Helix, December 21st, 2021 07:43 PM	Replies: 1 Views: 269	Last Post By Kevin_Hall December 23rd, 2021, 04:56 AM
A question about gravity Started by Kevin_Hall, December 21st, 2021 10:02 AM	Replies: 1 Views: 267	Last Post By Janus December 21st, 2021, 11:22 AM
How dark is space? Started by Kevin_Hall, December 21st, 2021 08:03 AM	Replies: 1 Views: 237	Last Post By exchemist December 21st, 2021, 11:03 AM
If there is a black hole, somewhere there is a white hole? Started by Kevin_Hall, December 21st, 2021 07:54 AM	Replies: 1 Views: 237	Last Post By Dywyddyr December 21st, 2021, 08:55 AM
Webb v Hubble Started by ox, December 19th, 2021 09:30 AM	Replies: 1 Views: 271	Last Post By Kevin_Hall December 20th, 2021, 12:43 PM
Black hole inside of another black hole? Started by Kevin_Hall, December 17th, 2021 01:32 PM	Replies: 3 Views: 320	Last Post By ox December 19th, 2021, 09:41 AM
Voyagers Started by Kevin_Hall, December 17th, 2021 02:03 PM	Replies: 1 Views: 279	Last Post By mathman December 17th, 2021, 05:54 PM
Gravitational lensing Started by keeseguy, October 10th, 2021 10:20 AM	Replies: 3 Views: 982	Last Post By ecochris December 15th, 2021, 02:51 PM
Imaging X-ray Polarimetry Explorer launched today!! Started by Double Helix, December 9th, 2021 06:10 PM	Replies: 0 Views: 343	Last Post By Double Helix December 9th, 2021, 06:10 PM