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In memory of nFA

Last post by Bigzmey « Sun Nov 24, 2024 5:38 pm
Replies: 46
by Gordon » Sat Dec 03, 2022 6:03 pm
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First post

I have some very sad news to past along.

Our top poster and long time member of both AstronomyForum.net and TheSkySearchers.com passed away November...

Last post

I just thought about him yesterday. Rest in peace nFA!
46 Replies

14150 Views

Last post by Bigzmey
Sun Nov 24, 2024 5:38 pm
Astrophysics Videos

Last post by notFritzArgelander « Mon May 30, 2022 5:39 am

by notFritzArgelander » Mon May 30, 2022 5:39 am

TEAM Comment: This stickie was suggested by nFA and we will be posting links to videos of different speakers discussing Astrophysics topics. If any...

0 Replies

3253 Views

Last post by notFritzArgelander
Mon May 30, 2022 5:39 am
Earthshine

Last post by chasmanian « Wed Dec 11, 2024 10:34 pm
Replies: 9
by chasmanian » Mon Dec 09, 2024 7:44 pm

First post

hey everyone,

I think understand something about Earthshine. would someone please tell me if I'm right?
consider this scenario. its nighttime and...

Last post

yay!!
thank you again for your excellent replies and answers to my questions Kathy.
and I can actually feel myself getting brighter!! :)

9 Replies

395 Views

Last post by chasmanian
Wed Dec 11, 2024 10:34 pm
The Shape of a Single Photon

Last post by helicon « Tue Nov 26, 2024 3:35 pm
Replies: 4
by Graeme1858 » Mon Nov 25, 2024 11:45 am

First post

A photo of a photon!

A new theory that explains how light and matter interact at the quantum level has enabled researchers to define for the first...

Last post

True photons can have properties of particles but also of waves. Or at least so I learned in Physics courses. The state of knowledge has clearly...

4 Replies

632 Views

Last post by helicon
Tue Nov 26, 2024 3:35 pm
saw the Sun through clouds, and thank you NFA

Last post by StarHugger « Mon Nov 25, 2024 2:23 am
Replies: 1
by chasmanian » Sun Nov 24, 2024 8:49 pm

First post

hey everyone,

I'm writing to tell you about something I saw a couple weeks ago.
I walked out the door of the community center where I swim, one...

Last post

Happy Thanksgiving Everyone Indeed!

1 Replies

187 Views

Last post by StarHugger
Mon Nov 25, 2024 2:23 am
MeerKAT Galaxy Discovery

Last post by helicon « Thu Nov 21, 2024 1:08 pm
Replies: 4
by Graeme1858 » Wed Nov 20, 2024 10:06 am

First post

New giant radio galaxy discovered with MeerKAT

An international team of astronomers has employed the MeerKAT radio telescope to investigate giant...

Last post

Amazing.

4 Replies

357 Views

Last post by helicon
Thu Nov 21, 2024 1:08 pm
New DESI data shed light on Gravity

Last post by StarHugger « Wed Nov 20, 2024 10:30 am
Replies: 1
by Graeme1858 » Wed Nov 20, 2024 10:18 am

First post

GR gives MG another pasting!

Gravity has shaped our cosmos. Its attractive influence turned tiny differences in the amount of matter present in...

Last post

Interesting, this second study and then the previous one from a while back and this team had alot of hands in too.

This field of research is...

1 Replies

146 Views

Last post by StarHugger
Wed Nov 20, 2024 10:30 am
Epic Gravity Lens Lines Up Seven-Galaxy View

Last post by StarHugger « Wed Nov 20, 2024 12:47 am
Replies: 1
by chasmanian » Tue Nov 19, 2024 9:56 pm

First post

this looks interesting from Scientific American:

Last post

Awesome lens with a cool name indeed.

1 Replies

181 Views

Last post by StarHugger
Wed Nov 20, 2024 12:47 am
Trapped Rouge Binaries in Orion

Last post by Ylem « Mon Nov 18, 2024 4:19 am
Replies: 1
by StarHugger » Mon Nov 18, 2024 3:05 am

First post

I think most here have tried to split the Trapezium Stars or image Orion without blowing out it's central core, I think we all wonder in amazement...

Last post

Wow!
That's amazing!

1 Replies

176 Views

Last post by Ylem
Mon Nov 18, 2024 4:19 am
Potential Hazard from the Taurid Meteor Showers

Last post by StarHugger « Fri Nov 15, 2024 10:56 pm
Replies: 4
by Caddman » Fri Nov 15, 2024 4:41 pm

4 Replies

281 Views

Last post by StarHugger
Fri Nov 15, 2024 10:56 pm
Neutrino Fog Hurdle

Last post by Graeme1858 « Wed Nov 13, 2024 9:14 am

by Graeme1858 » Wed Nov 13, 2024 9:14 am

Italian and Chinese physicists discover new neutrino problem.

As if searching for dark matter isn't difficult enough already, physicists may have...

0 Replies

153 Views

Last post by Graeme1858
Wed Nov 13, 2024 9:14 am
New report details what happened to the Arecibo Observatory

Last post by StarHugger « Mon Nov 11, 2024 9:24 pm
Replies: 3
by helicon » Thu Nov 07, 2024 1:03 pm

First post

Made famous by the film Contact

Last post

Very interesting, alot of stresses playing on that structure. When I used to tower climb back in the day our 550' tower anchorments where always...

3 Replies

275 Views

Last post by StarHugger
Mon Nov 11, 2024 9:24 pm
Ion Engines

Last post by ThinkerX « Sat Nov 02, 2024 7:30 am
Replies: 1
by Graeme1858 » Mon Oct 28, 2024 8:07 am

First post

Sending an object to another star is still the stuff of science fiction. But some concrete missions could get us at least part way there. These...

Last post

I attempted to run the numbers on something like this a few years ago - but much of it was a 'best guess' because of missing data. If memory serves...

1 Replies

482 Views

Last post by ThinkerX
Sat Nov 02, 2024 7:30 am
Milky Way SMBH My be Elongated.

Last post by StarHugger « Sun Oct 27, 2024 6:43 pm
Replies: 2
by Graeme1858 » Sun Oct 27, 2024 4:52 pm

First post

Radio image of Sagittarius A* in the centre of the Milky Way galaxy, obtained from re-analysis by new research. The structure is elongated from east...

Last post

Interesting article, we are indeed getting closer to better accuracy in imaging black holes.

2 Replies

364 Views

Last post by StarHugger
Sun Oct 27, 2024 6:43 pm
Record gamma rays detected at Milky Way's core

Last post by Graeme1858 « Wed Oct 23, 2024 1:49 pm

by Graeme1858 » Wed Oct 23, 2024 1:49 pm

It would seem the core of our galaxy is even more violent than we knew!

At the High-Altitude Water Cherenkov (HAWC) observatory, 13,000 feet above...

0 Replies

279 Views

Last post by Graeme1858
Wed Oct 23, 2024 1:49 pm
Ultralight Dark Matter

Last post by Graeme1858 « Tue Oct 22, 2024 8:59 am

by Graeme1858 » Tue Oct 22, 2024 8:59 am

Ultralight dark matter helps to understand Gravitational Wave energy loss.

A recent study in Physical Review Letters explores the effects of...

0 Replies

265 Views

Last post by Graeme1858
Tue Oct 22, 2024 8:59 am
Clouds of Axions Shroud Neutron Stars

Last post by Graeme1858 « Mon Oct 21, 2024 11:39 am

by Graeme1858 » Mon Oct 21, 2024 11:39 am

A team of physicists from the universities of Amsterdam, Princeton and Oxford have shown that extremely light particles known as axions may occur in...

0 Replies

244 Views

Last post by Graeme1858
Mon Oct 21, 2024 11:39 am
A "Steam World"

Last post by Mike Q « Sat Oct 19, 2024 9:29 pm
Replies: 4
by AntennaGuy » Sun Oct 13, 2024 3:59 pm

First post

Headline: Nearby exoplanet is a 1st-of-its-kind 'steam world,’ James Webb Space Telescope finds.

This world, designated GJ 9827 d, is around twice...

Last post

Well since all the good words have been used already, i will just say... Cool

4 Replies

411 Views

Last post by Mike Q
Sat Oct 19, 2024 9:29 pm
Quantum Processes in Spacetime

Last post by Graeme1858 « Thu Oct 17, 2024 9:37 am

by Graeme1858 » Thu Oct 17, 2024 9:37 am

Quantum Physics and Special Relativity take a step closer to each other.

New theoretical framework sets limits for the realization of quantum...

0 Replies

263 Views

Last post by Graeme1858
Thu Oct 17, 2024 9:37 am
New physics needed?

Last post by Mike Q « Mon Sep 30, 2024 3:43 pm
Replies: 2
by Graeme1858 » Mon Sep 30, 2024 11:49 am

First post

Seems it's more clumpy out there than it should be:

Last post

I am afraid the universe ia going to keep us guessing

2 Replies

345 Views

Last post by Mike Q
Mon Sep 30, 2024 3:43 pm
Advanced data shed light on gravitational basins of attraction that shape the movement of galaxies

Last post by Graeme1858 « Fri Sep 27, 2024 3:23 pm
Replies: 1
by helicon » Fri Sep 27, 2024 2:39 pm

1 Replies

389 Views

Last post by Graeme1858
Fri Sep 27, 2024 3:23 pm
New method to search for dark matter using LIGO

Last post by Graeme1858 « Sat Sep 21, 2024 8:16 am

by Graeme1858 » Sat Sep 21, 2024 8:16 am

A new study published in Physical Review Letters (PRL) proposes using gravitational wave detectors like LIGO to search for scalar field dark matter.

0 Replies

497 Views

Last post by Graeme1858
Sat Sep 21, 2024 8:16 am
Solar Flybys & Early Solar System Formation

Last post by SparWeb « Sun Sep 15, 2024 3:14 am
Replies: 4
by StarHugger » Tue Sep 10, 2024 11:43 pm

First post

This new study suggests that 1% of stars in the MilkyWay suffer a Stellar Flyby reshaping orbits and causing mayhem with planetary collisions and...

Last post

Wow,
Flipped like an omelette!

4 Replies

628 Views

Last post by SparWeb
Sun Sep 15, 2024 3:14 am
New cataclysmic variable system discovered

Last post by helicon « Tue Sep 03, 2024 1:41 pm

by helicon » Tue Sep 03, 2024 1:41 pm

0 Replies

447 Views

Last post by helicon
Tue Sep 03, 2024 1:41 pm
Astrophysical simulations predict new detectable gravitational wave source from collapsing stars

Last post by Michael131313 « Tue Aug 27, 2024 1:46 am
Replies: 2
by helicon » Sun Aug 25, 2024 4:23 pm

2 Replies

596 Views

Last post by Michael131313
Tue Aug 27, 2024 1:46 am

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