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All Things Astronomy

Like NPR "All Things Considered" with a focus on astronomy and space topics to include... literally any object or phenomenon above Earth's atmosphere. (PLEASE abstain from posting anything about astrology)

Like NPR "All Things Considered" with a focus on astronomy and space topics to include... literally any object or phenomenon above Earth's atmosphere. (PLEASE abstain from posting anything about astrology)

Join Group 730 Members 424 Photos

Posts Tagged "earth" By Hathacat (178) Posts by anyone

Posts
Jul 4, 2022Jul 2022

Posted by euG5555
Einstein explained gravity over one hundred years ago: He said it was warped space-time and told where to look for it, the bending of light in a gravitational field. He explained the bending of light was caused by space rising from the surface of the...
2 comments
Posts
Jun 9, 2022Jun 2022

Posted by euG5555
Push Gravity Sir Issac Newton said that space moves through matter freely without friction. By moving through space, you experience momentum, change in momentum lags behind the change in velocity. The momentum of an object applies pressure on the ...
0 comments
Posts
Jun 9, 2022Jun 2022

Posted by euG5555
Sir Issac Newton said that space moves through matter freely without friction. By moving through space, you experience momentum, change in momentum lags behind the change in velocity. The momentum of an object applies pressure on the object stopping ...
0 comments
All Things Astronomy
Jan 23, 2022Jan 2022

Posted by Robecology
For those following the JWST...I found an excellent explanation - both written and diagram - of the LaGrange orbital destination points. In the 18th century, Italian French mathematician Joseph-Louis Lagrange determined that celestial bodies’ ...
2 comments
Posts
Dec 20, 2021Dec 2021

Posted by euG5555
IEugene Bunt Studied Laser Technology at Schoolcraft CollegeUpdated Nov 22 What is the substance of spacetime? Einstein explained gravity over one hundred years ago: He said it was warped space-time and told where to look for it, the bending of light...
1 comment
Posts
Oct 17, 2021Oct 2021

Posted by euG5555
Einstein explained gravity over one hundred years ago: He said it was warped space-time and told where to look for it, the bending of light in a gravitational field. He explained the bending of light was caused by space rising from the surface of the...
1 comment
All Things Astronomy
Oct 15, 2021Oct 2021

Posted by euG5555
Gravity is the result of warped space-time. Matter affected by gravity is the result of experiencing a change in uniform motion. Change in momentum lags behind a change in velocity. Matter on the surface of the Earth is applying pressure on the core:...
1 comment
All Things Astronomy
Oct 3, 2021Oct 2021

Posted by dalefvictor
Large comet is comming towards Earth, will not come in contact, not even close, but it is large. To bad we cannot go and see what is there.
3 comments
All Things Astronomy
Mar 5, 2021Mar 2021

Posted by FearlessFly
Astronomically hard: French stargazers hunt for meteorite the size of apricot The space debris was spotted falling to Earth near Bordeaux but astronomer admits to ‘needle in a haystack’ search
2 comments
All Things Astronomy
Feb 1, 2021Feb 2021

Posted by starwatcher-al
Hubble deep field. The Hubble Ultra Deep Field (in its eXtreme version) is the deepest view of the universe yet obtained … and will be, until JADES takes over. It stretches approximately 13 billion light-years and includes approximately...
3 comments
All Things Astronomy
Jan 20, 2021Jan 2021

Posted by nicestuff
Phases of the Moon. Please correct me if I'm wrong. 1. If you see the moon between mid-day and midnight, it must be waxing. If you see it in the a.m. hours, it must be waning. 2. To an observer in the Northern Hemisphere, the ...
4 comments
All Things Astronomy
Nov 16, 2020Nov 2020

Posted by starwatcher-al
December will be a busy month. SKIES OF ARIZONA by Al Schober Ok, it's December and it's supposed to be cold. But the year 2020 has been anything but normal in so many ways. As I am writing this in mid November it's 70 degrees during the day so all...
1 comment
All Things Astronomy
Oct 13, 2020Oct 2020

Posted by Hathacat
The Spider Nebula, 10.000 light-years away from Earth.
0 comments
All Things Astronomy
Sep 18, 2020Sep 2020

Posted by EdEarl
SpaceX is being criticised by astronomers for the Starlink constellation of communication satellites, and rightly so. On the other hand, SpaceX is rapidly developing a two stage rocket that's 9 meters in diameter and capable of putting 100 tons of ...
0 comments
All Things Astronomy
Sep 12, 2020Sep 2020

Posted by yvilletom
The year 2020 is clearly out to make its mark in a big way: a global pandemic, massive wildfires across the Western United States, huge demonstrations for social justice around the globe. Here’s another one: a record observed near-miss of Earth ...
3 comments
All Things Astronomy
Sep 3, 2020Sep 2020

Posted by Amzungu
LINKBlack holes: Cosmic signal rattles Earth after 7 billion years - BBC News
1 comment
Posts
Aug 23, 2020Aug 2020

Posted by Hathacat
This little dot is Earth about 6 Billion kilometers away (3.7 billion miles) taken by Voyager 1, as it was leaving our solar system. So much life in that little Pale Blue Dot.
1 comment
All Things Astronomy
Aug 23, 2020Aug 2020

Posted by Hathacat
Damn how sharp is this moon shot.
2 comments
All Things Astronomy
May 25, 2020May 2020

Posted by starwatcher-al
This is called "the old moon in the new moon's arms" . Because you can see the part of the moon that is not illuminated by the sun. that's the "old moon'. You can see detail because sunlight reflected off the earth and onto the moon then reflects ...
1 comment
All Things Astronomy
May 21, 2020May 2020

Posted by starwatcher-al
Tonight, right now, Venus is very close to Mercury in the western sky. Tomorrow Mercury will be above Venus as they separate while Venus plunges towards the horizon by month's end. Mercury will get higher, reaching it's greatest elongation from the ...
1 comment
All Things Astronomy
May 15, 2020May 2020

Posted by starwatcher-al
I never though to do this but, I write a star column for a local landowners association and am posting it here. It's bi-monthly and if I get a few likes I'll post every time I write it. I hope you find it interesting ...
2 comments
All Things Astronomy
May 13, 2020May 2020

Posted by starwatcher-al
Science/Nerd alert: Apparently all the text books and the other sources which we have read over our life about how gold is formed was wrong. Just a few nights ago we were watching "How the universe works" and how a few years ago many of our ...
3 comments
Shared from Academic (e.g., Science)
Mar 4, 2020Mar 2020

Posted by yvilletom
Volcanic Vents? February 28, 2020 Deep pits on Mars are not easy to explain. Previous Picture of the Day articles discuss many unusual formations on Mars. Craters, canyons, dunes and many other features do not readily correspond to contemporary ...
1 comment
All Things Astronomy
Feb 13, 2020Feb 2020

Posted by starwatcher-al
A mottled orange, red, and yellow orb surrounded by stars Betelgeuse, Betelgeuse, Betelgeuse. The constellation of Orion the Hunter is one of the most dependable sights in the night sky. Even in the most light-polluted cities, the outline is ...
1 comment
Shared from Academic (e.g., Science)
Sep 2, 2019Sep 2019

Posted by yvilletom
Cosmic Microwave Background Radiation (CMBR) Widely Claimed as Evidence for the Big Bang If there is background radiation coming our way, how would we recognize it? It would have to originate from far behind the galaxies and nebulae that surround ...
7 comments


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Photos 424 More

Posted by starwatcher-alThe occultation of Mars on the 7th.

Posted by starwatcher-alThe occultation of Mars on the 7th.

Posted by starwatcher-alSolar minimum was in 2019 so the sun is ramping up in flares, spots and prominences.

Posted by starwatcher-alI missed the early phases of the eclipse but the clouds mostly left during totality. All in all a great eclipse. Next one is Nov. 8-22

Posted by starwatcher-alI missed the early phases of the eclipse but the clouds mostly left during totality. All in all a great eclipse. Next one is Nov. 8-22

Posted by RobecologyFor those following the JWST.

Posted by AnonySchmoose The post-launch set-up of the new James Webb telescope has gone very well.

Posted by HumanistJohnImages taken with Stellina (80 mm): M33 Triangulum Galaxy M1 Crab Nebula NGC281 Pacman Nebula in Cassiopeia NGC 6992 Veil Nebula in Cygnus

Posted by HumanistJohnImages taken with Stellina (80 mm): M33 Triangulum Galaxy M1 Crab Nebula NGC281 Pacman Nebula in Cassiopeia NGC 6992 Veil Nebula in Cygnus

Posted by HumanistJohnImages taken with Stellina (80 mm): M33 Triangulum Galaxy M1 Crab Nebula NGC281 Pacman Nebula in Cassiopeia NGC 6992 Veil Nebula in Cygnus

Posted by HumanistJohnImages taken with Stellina (80 mm): M33 Triangulum Galaxy M1 Crab Nebula NGC281 Pacman Nebula in Cassiopeia NGC 6992 Veil Nebula in Cygnus

Posted by HumanistJohnImages taken October 2nd 2021 with Stellina 1.

Posted by HumanistJohnImages taken October 2nd 2021 with Stellina 1.

Posted by HumanistJohnImages taken October 2nd 2021 with Stellina 1.

Posted by starwatcher-al Did you know that you can see Venus in the daytime?

Posted by starwatcher-alOne of these days I think that I'll figure out this Nikon.
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