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Crappy Chinese space station falling out of the sky any day now by RichA[_6_]
Check-out the detector device. Looks like a Samyang manual focus lens attached to a CCD camera of some...
April 1st 18 06:10 PM
by Chris L Peterson Go to last post
5 167
Chinese junk to fall on Walmart by RichA[_6_]
Get it? Two jokes in one. https://www.cnn.com/2018/03/29/asia/tiangong-1-china-space-lab-intl/index.html
April 1st 18 05:16 PM
by RichA[_6_] Go to last post
0 137
Voyager responds after 37 years of inactivity by StarDust
https://www.youtube.com/watch?v=m1PGo_MB11M I wonder, where they got this sexy astronomer girl, Chavez?
March 31st 18 06:38 AM
by StarDust Go to last post
0 154
Webb Telescope delayed until mid 2020 by RichA[_6_]
http://www.bbc.com/news/science-environment-43559980
March 29th 18 07:56 AM
by Gerald Kelleher Go to last post
1 165
What DST does by Gerald Kelleher
The daily cycle is anchored to noon where sunrise and sunset are more or less symmetrical either side of this fixed astronomical event regardless of...
March 26th 18 03:29 PM
by Gerald Kelleher Go to last post
6 165
Amazing Astronomical Discovery by Quadibloc
Our Solar System now has a fourth planet! Yes, an astronomer encountered an unexpected bright object in his field of view, and reported the discovery without...
March 25th 18 10:17 AM
by RichA[_6_] Go to last post
6 195
Geometric DNA by Gerald Kelleher
The structure does not originate with me hence my reluctance over the past 30 years to show it and especially among a hostile or uninterested bunch of people...
March 24th 18 08:37 AM
by Gerald Kelleher Go to last post
0 155
The Equinox defined by Gerald Kelleher
Even in geocentric terms the Equinox is a special day with two distinct types of sunrises and sunsets. The Sun will come into view for the one and only time...
March 21st 18 03:02 PM
by Gerald Kelleher Go to last post
7 195
RIP, Stephen Hawking by palsing[_2_]
A brilliant life has finally come to an end at age 76. We are very lucky to have had him for so long. \Paul A
(Multi-page thread 1 2 3)
March 21st 18 12:55 PM
by Chris.B[_3_] Go to last post
25 336
A rotating Earth with a proper inclination by Gerald Kelleher
https://en.wikipedia.org/wiki/Deep_Space_Climate_Observatory#/media/File:EpicEarth-Globespin-tilt-23.4.gif By right the rotation relative to the orbital plane...
March 18th 18 07:18 PM
by Gerald Kelleher Go to last post
2 198
The photographic medium Joe Public isn't allowed to buy by RichA[_6_]
Neutron imaging!! https://en.wikipedia.org/wiki/Neutron_imaging However, Muon imagers may at some point be available, they are used now to x-ray vehicles...
March 18th 18 02:13 PM
by Chris L Peterson Go to last post
5 154
Sub-Auroral Ion Drifts discovered to cause unusual purple aurora by Quadibloc
I ran across this news item: https://phys.org/news/2018-03-mystery-purple-sky-citizen-scientists.html John Savard
March 18th 18 09:01 AM
by Paul Schlyter[_3_] Go to last post
6 170
Increasing exposure to space radiation means manned-flight = onlyProject Orion will work by RichA[_6_]
It's the only craft that can life enough weight to provide shielding for astronauts. https://phys.org/news/2018-03-space-increasingly-hazardous.html
March 16th 18 01:40 PM
by Chris L Peterson Go to last post
2 150
That is one insane astro camera! by RichA[_6_]
https://www.lsst.org/about 10,500mm f/1.25, 3GP sensor array and a 27ft diameter mirror. Able to scan its whole sky in...3 nights?!
March 16th 18 12:54 PM
by StarDust Go to last post
7 191
Equinox image 2018 by Gerald Kelleher
https://epic.gsfc.nasa.gov/ For whatever reason known only to themselves, NASA has decided not to represent the images of the Earth with a constant 23 1/2...
March 10th 18 07:51 AM
by Gerald Kelleher Go to last post
1 182
Webb cost climbing over $8 billion from $1 billion estimate. delays imminent by RichA[_6_]
http://www.skyandtelescope.com/astronomy-news/james-webb-space-telescope-additional-delays-likely/
March 7th 18 07:56 AM
by Chris.B[_3_] Go to last post
5 208
Real astronomical challenges by Gerald Kelleher
The partitioning of direct/retrogrades by perspective is immediately apparent in terms of the illusory loops of the slower moving outer planets and the actual...
(Multi-page thread 1 2 3)
March 2nd 18 06:21 PM
by Quadibloc Go to last post
21 320
Polar astronomy revisited by Gerald Kelleher
On Friday, March 2, 2018 at 8:32:00 AM UTC, Gerald Kelleher wrote: https://www.youtube.com/watch?v=MdFrE7hWj0A The animation is notable for a number of...
March 2nd 18 11:06 AM
by [email protected] Go to last post
1 159
Polar astronomy revisited by Gerald Kelleher
https://www.youtube.com/watch?v=MdFrE7hWj0A The animation is notable for a number of reasons however , in this case, it is applied to observing at the...
March 2nd 18 08:31 AM
by Gerald Kelleher Go to last post
0 158
NASA's biggest worry right now: What if something goes wrong with the Webb telescope? by Davoud[_1_]
Chris.B: How does an impoverished country, so deeply in debt, like the USA, manage such costly exercises? Impoverished? Really? I should get out...
(Multi-page thread 1 2 3 ... Last Page)
March 2nd 18 07:37 AM
by Chris.B[_3_] Go to last post
170 791
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