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: 40,847	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: 15,985	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: 27,405	Last Post By Dishmaster November 15th, 2008, 01:28 PM

Hubble Space Telescope Spots Isolated Black Hole By Microlensing Event! Started by Double Helix, June 18th, 2022 06:58 PM	Replies: 0 Views: 182	Last Post By Double Helix June 18th, 2022, 06:58 PM
Starquakes Started by ox, June 15th, 2022 06:29 AM	Replies: 2 Views: 156	Last Post By ox June 16th, 2022, 05:48 AM
The Webb Space Telescope - Almost Ready For First Images! Started by Double Helix, June 7th, 2022 06:34 PM	Replies: 3 Views: 231	Last Post By Double Helix June 9th, 2022, 10:40 AM
James Webb Telescope completed Started by cosmictraveler, April 25th, 2014 08:36 AM	Replies: 5 Views: 919	Last Post By Double Helix June 7th, 2022, 07:53 PM
Rock Around the Earth Started by zinjanthropos, May 16th, 2022 07:41 AM	Replies: 5 Views: 411	Last Post By Double Helix May 19th, 2022, 10:09 PM
The Webb Space Telescope : Flight, deployment, and L2 destination. Started by Double Helix, January 1st, 2022 05:05 PM	Replies: 39 Views: 2,072	Last Post By Double Helix April 28th, 2022, 08:30 PM
Solar Eclipse on Mars - From Mars! Started by Double Helix, April 21st, 2022 06:39 PM	Replies: 0 Views: 458	Last Post By Double Helix April 21st, 2022, 06:39 PM
The source of dark energy is gravitational self-energy! Started by icarus2, March 24th, 2022 10:33 AM	Replies: 2 Views: 778	Last Post By icarus2 April 21st, 2022, 06:12 PM
The Multiwavelength Crab Nebula : A New Composite view of M1 !! Started by Double Helix, March 4th, 2022 07:22 PM	Replies: 1 Views: 805	Last Post By Double Helix March 5th, 2022, 01:03 PM
High Contrast Moon : Data From NASA's Lunar Reconnaissance Orbiter! Started by Double Helix, February 24th, 2022 12:44 PM	Replies: 0 Views: 752	Last Post By Double Helix February 24th, 2022, 12:44 PM
Imaging X-ray Polarimetry Explorer launched today!! Started by Double Helix, December 9th, 2021 06:10 PM	Replies: 1 Views: 1,186	Last Post By Double Helix February 22nd, 2022, 12:14 PM
Can Sirius go supernova? Started by Kevin_Hall, January 13th, 2022 09:32 AM	Replies: 4 Views: 1,080	Last Post By Janus February 22nd, 2022, 10:49 AM
Opposite of FTL Barrier? Started by zinjanthropos, January 11th, 2022 01:47 PM	Replies: 9 Views: 1,107	Last Post By The Raven January 19th, 2022, 04:03 AM
Europa Clippper - A search for life on an icy moon! Started by Double Helix, January 7th, 2022 01:03 PM	Replies: 0 Views: 989	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: 1,012	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: 1,030	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: 1,050	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: 1,104	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: 1,149	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: 1,096	Last Post By Double Helix December 23rd, 2021, 08:15 PM