Diverse organic-mineral associations in Jezero crater, Mars
The rover that just keeps giving, so looks like “NASA's Perseverance Mars rover discovers more evidence of building blocks of life on Mars.”.
This is from the original Fediverse post by Natalie Davis
NASA's Perseverance Mars rover discovers more evidence of building blocks of life on Mars. Although the organic molecules were not necessarily the products of biological processes, it does raise the chances Mars once had life and could indicate we're looking in the right place.
So exciting stuff, the full article in Nature can be found here
So we are finding more evidence Mars may once have had life. If you want to learn more about some of the basic building blocks of life and how we go about finding these, please check a previous post about the Mumbai University Astrobiology course videos
In the mean time feel free to ask on Fedi or on Science forums.
Tags
#Mars #Perseverance #life #astronomy #astrophysics #astrodon #space #science
Exoplanets Transit simulator
This was posted to Mastodon by Dr. Alexandre Santerne. Just had a go and it looks really nice and smooth, and has few options to change the simulation parameters.
Do you know how #astronomers are hunting for #exoplanets ? Most of them are discovered with the transit and/or radial velocity techniques.
We developed at #LAM (#laboratoire d'#astrophysique de #Marseille) a web tool that simulate an #exoplanet and show you their photometric and radial velocity signals. Feel free to play with the parameters and see how they change the signals.
Links
Tags
#Exoplanet,#Astronomy,#Astrophysics,#Marselle,#Simulator,#Transit,
#Stars,#Star,#Exoplanet,#Spectra,#AbsorbtionSpectra,#EmissionSpectra
JWST finds water on Enceladus
Posted to the Fediverse on 30/5/2023. The James Webb Space Telescope has potentially found water on Enceladus, one of the moons of Saturn. This is a great discovery and shows there is water on other planets. You can read original fediverse post via link below.
The following graphic was also part of the post, so reproducing here too.
Feel free to discuss further either tag me on fedi @[email protected]. Or you can start a thread on Science Forums
Sorry, I don't use mainstream social media. This is 2023, the fediverse provides intellectual content.
Tags
#Science,#Astronomy.#JWST,#Saturn,#Moon,#Enceladus,#Water
Physicists suggest that black holes could have an exit to other places in the universe
Interesting article from Meson Stars regarding black holes having possible exits. I have included a paste of my Fediverse comment below. However feel free to discuss on Fediverse or on Science forums.
Links
Comment
This does make some sense, I have heard about white holes, which are the opposite of black holes as they allow matter to be ejected in to space. This seems to tie in with the suggestion in the article that if you could pass through you cannot get back again. However in relation to this
"Scientists have already said that all matter inside a black hole is destroyed, "
I got the impression matter can't be created or destroyed, it is interchangeable with energy. In which case, could it be that matter is drawn in to a black hole, somehow converted in to energy then ejected from a white hole?
So purely on a speculative idea
So how do we find these white holes, perhaps we have already found them as we can detect things like gamma ray bursts or neutrino emissions but can't always explain them, perhaps these are related to white holes and we are observing the release of energy in to space as these or similar phenomenon
Videos
Tags
#Science,#Physics,#Blackholes,#Matter,#Astronomy,#Cosmology
Saturn Moon count Jumps
This was posted to Fedi on 19th May. New Scientist report on the moons around Saturn thanks to new research in to the rings. We are now up to 140, which surpasses the moons around Jupiter.
Saturn’s Youthful Rings and Newfound Moons Put It in Stargazing Spotlight
Links
Tags
#Astronomy,#Science.#Saturn,#Rings,#Moons,#MoonCount
Spacetime: real and physical, or a calculational tool?
Interesting article about Space-time. This was posted to the fediverse on the StartsWithABang @[email protected]
This is interesting, even if it may be hard to get your head round it sometimes. There is an activity we could try and do at the STEM group that will demonstrate the warping of space around a mass. This isn't complex to do, just needs the right materials.
As always we can discuss on Science forums or on the Fediverse.
Tags
#Astronomy,#Cosmology,#Science,#SpaceTime
WATER WORLDS: Hideouts for Alien Life?
This was posted to the Fediverse earlier, WATER WORLDS: Hideouts for Alien Life? it is on Youtube so I have included an Invidious link too.
Check out melodysheep
I have included links to science forums and the fediverse (mastodon) instance I am on for further discussion.
Links
Tags
#Astronomy,#Space,#WaterWorlds,#HyceanPlanets
Astronomy updates
A few updates from the world of Astronomy, these were published last week, just that my blog has lots of stuff scheduled.
Both the following are interesting:-
We can discuss further on science forums.
Links
Just added this on 2/5/2023
In other news it is also #BlackHoleWeek, so if you head over to NASAs Black home basics page there is loads of useful information on the the subject. Be sure to follow NASA on the Fediverse too.
Tags
#Astronomy,#News,#BlackHoleWeek,#NASA,#Cosmology
Extraterrestrial life paper from phys.org
Another interesting paper on extra terrestrial life. I was not aware of the term 'Terminator Zone' till today. Posted to fedi by
Mikko Tuomi : @[email protected]
Links
Comment
I will see if I can download the paper, and add it to my reading list, but we are learning all the time.
So looking at the “terminator zone,” which is a ring on planets that have one side that always faces its star and one side that is always dark. “.
Tags
#Physics,#Astronomy,#Life,#ExtraterrestrialLife
The Universe is Broken
This is an interesting podcast from Awesome Astronomy looking at a how a recent James Webb telescope discovery could force us to re-write what we know about the evolution of the universe.
Dicuss further on Fedi or on Science Forums
Tags
#Science,#Astronomy.#Cosmology,#JamesWebb,#Universe,#History