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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 "planets" 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
Nov 7, 2021Nov 2021

Posted by FearlessFly
Star System With Right-Angled Planets Surprises Astronomers
2 comments
All Things Astronomy
May 10, 2021May 2021

Posted by levan
Our observable universe is 13.8 billion years old. It’s about 93 billion light years in diameter. It contains at least 200 billion galaxies and over 700 quintillion planets. As of now, over 4,300 exoplanets has been confirmed. They’re called ...
2 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 18, 2020Oct 2020

Posted by Hathacat
Flying past Saturn's moon Dione, Cassini captured this view that includes two smaller moons, Epimetheus and Prometheus, near the planet's rings.
2 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
Aug 23, 2020Aug 2020

Posted by yvilletom
The stars near the edges of spiral galaxies revolve with the same angular velocity as stars close to their centers. Newtonian theory, which explains our solar system well, ...
1 comment
All Things Astronomy
Jul 17, 2020Jul 2020

Posted by yvilletom
The recent posts here on comets make the following relevant: Top 10 Reasons the Universe is Electric 9: Electric Comets | Space News Scott Douglas July 16, 2020 Through eight installments of this series, Top 10 Reasons the Universe is Electric, we...
0 comments
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
Apr 27, 2020Apr 2020

Posted by DevilMayCare
the little dot we live on. the book of knowledge. vol. 7. 1912 the comparative sizes of the sun and the planets. the outline of science. 1922 lunar eclipse beginning. the outline of science. vol 1. 1922
2 comments
All Things Astronomy
Nov 17, 2019Nov 2019

Posted by Hathacat
How about starting the day with an extraordinary birth...What you see here is what is called a planetary proplyd, a strange name that describes a fantastic cosmic event. This one is located in the Orion Nebula. Look at it and think of us as we were, ...
3 comments
All Things Astronomy
Jun 27, 2019Jun 2019

Posted by Hathacat
The very first pictures taken of the planets. I enjoyed this!
3 comments
All Things Astronomy
Apr 26, 2019Apr 2019

Posted by Lukian
Marsquake detected!! That didn't take long. First marsquake detected by NASA’s InSight mission By Paul VoosenApr. 23, 2019 , 2:50 PM Mars is shaking. After several months of apprehensive waiting on a quiet surface, NASA’s ...
0 comments
All Things Astronomy
Mar 24, 2019Mar 2019

Posted by AntaresRose
NASA finds 7 more planets.
1 comment
All Things Astronomy
Mar 24, 2019Mar 2019

Posted by Smorie
If an object the same mass as the Earth was to whiz past the Earth but miss by less than 500km, what would be the effects? Would there be massive tsunamis? Would people get pulled off the ground? Would there be no effect at all? Mats ...
2 comments
All Things Astronomy
Feb 27, 2019Feb 2019

Posted by AntaresRose
Elephant Trunk Nebula.
1 comment
All Things Astronomy
Feb 8, 2019Feb 2019

Posted by Lukian
Big storm on Uranus (yes the planet) Hubble Reveals Dynamic Atmospheres of Uranus, Neptune During its routine yearly monitoring of the weather on our solar system's outer planets, NASA's Hubble Space Telescope has uncovered a new mysterious dark...
0 comments
All Things Astronomy
Dec 17, 2018Dec 2018

Posted by Lukian
Rosetta witnesses birth of baby bow shock around comet. ... As the supersonic solar wind flows past objects in its path, such as planets or smaller bodies, it first hits a boundary known as a bow shock. As the name suggests, this phenomenon is ...
0 comments
All Things Astronomy
Dec 15, 2018Dec 2018

Posted by VineetHonkan
Here in Toronto every month at U of T (University of Toronto St. George Campus, downtown Toronto, the greatest city in the world! lol) the graduate astronomy society holds an outreach where they discuss current things on the bend. things like ...
2 comments
All Things Astronomy
Dec 8, 2018Dec 2018

Posted by chilehead9
A map of our solar system where 1 pixel equals the diameter of the Moon. You're in for a LOT of scrolling. The distance between Uranus and Neptune compared to the inner planets blew my brain gasket
4 comments
Shared from Academic (e.g., Science)
Nov 21, 2018Nov 2018

Posted by Lukian
since most stellar systems are binaries, astronomers have searched for our suns twin and may have found it source article: Astronomers May Have Just Discovered Our Sun's Long-Lost Identical Twin It's thought ...
1 comment
All Things Astronomy
Nov 7, 2018Nov 2018

Posted by Lukian
Peekaboo, Io See You! Credit: NASA/SwRI/MSSS/Gerald Eichstädt/Justin Cowart Wednesday, November 7, 2018: Jupiter's moon Io peeks out from behind the planet's horizon in this image from the JunoCam instrument on NASA's Juno spacecraft. Citizen ...
2 comments
All Things Astronomy
Oct 11, 2018Oct 2018

Posted by Lukian
I knew it. I knew moonmoon made no sense at all.... but I would have guessed that satellite would have been the word Bigger Moons Have Moons, And Some Are Calling Them 'Moonmoons' The New Scientist magazine popularized the term, but two ...
1 comment


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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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