Astronomy and space news

Discussion in 'Astronomy, Exobiology, & Cosmology' started by BdS, Oct 11, 2019.

  1. BdS Registered Senior Member

    Messages:
    457
    The astronomy and space news at phys.org over the past few weeks has been so awesome, recommended to anyone interested in these topics.

    https://phys.org/space-news/

    Please Register or Log in to view the hidden image!

     
    Yazata likes this.
  2. Google AdSense Guest Advertisement



    to hide all adverts.
  3. exchemist Valued Senior Member

    Messages:
    9,414
    Yes, we can use the internet too.

    Please Register or Log in to view the hidden image!

     
  4. Google AdSense Guest Advertisement



    to hide all adverts.
  5. BdS Registered Senior Member

    Messages:
    457
    Because you have been following the astronomy news lately, that doesn't mean everyone has been. But I do understand why you didn't figure that...
     
  6. Google AdSense Guest Advertisement



    to hide all adverts.
  7. exchemist Valued Senior Member

    Messages:
    9,414
    Look, if you want to raise a topic for discussion, do it.

    But don't just tell us to go and look something up, to see what is, or isn't, happening. That's just dumb.
     
  8. Michael 345 New year. PRESENT is 70 years old Valued Senior Member

    Messages:
    9,091
    There is a fascinating article in a women's magazine you might not have noticed
    "How the colour of your nail polish on your toenails can affect your sex life"

    https://toenailpolishimportantinfo/yaright/

    awesome, recommended to anyone interested in these topics.

    Please Register or Log in to view the hidden image!

     
  9. BdS Registered Senior Member

    Messages:
    457
    Interested! your links broken though.
    What colour are your toenails?
     
  10. BdS Registered Senior Member

    Messages:
    457
    I didn't tell you to look anything up. Merely suggested that there has been some interesting developments lately that are worth knowing about if you interested.

    I raised millions of topics to discuss. You are not worthy of discussing anything with... Expired chemist?
     
  11. Michael 345 New year. PRESENT is 70 years old Valued Senior Member

    Messages:
    9,091
    Colour - natural although the two big toes currently natural is bruised colour

    Broken link - magazine out of business. Something about to many stupid articles

    Please Register or Log in to view the hidden image!

     
  12. BdS Registered Senior Member

    Messages:
    457
    You see phy.org is still in business? probably got something to do with too many interesting articles, especially the recent ones I find. Do you like any of the recent astronomy articles?
     
  13. Michael 345 New year. PRESENT is 70 years old Valued Senior Member

    Messages:
    9,091
    That may very well true

    However I have a wide range of interest and I am guessing, like many (most) on the net, are bombarded with "look at me" postings

    Astronomy itself has many facets

    Don't think a science forum needs reminding ANY site connect with space will (would) have awesome articles

    Perhaps a bit more detail ie - note the latest details about Dark Energy - might help a person who has a interest in Dark Energy

    Or if you have a interest in Micro Asteroids start a thread with that as title

    This thread could be just look at me links ie to generalised

    Needs a more focused subject (probably not toenails

    Please Register or Log in to view the hidden image!

    )

    Please Register or Log in to view the hidden image!

     
  14. Truck Captain Stumpy The Right Honourable Reverend Truck Captain Valued Senior Member

    Messages:
    1,263
    offered IMHO: a far better site for just space and astronomy news would be Universe today: https://www.universetoday.com/

    joining the site gives you access to news as well as the potential to be involved with not only Fraser Cain's video production but the interviews, guest appearances, and much more. You can join the Weekly Space Hangout with like minded people who help produce the show and have the ability to chat (like on slack.com) with several PhD's helping explain the astrophysics or science behind what is happening (Dr. Pam, Dr. Matt, Dr. Sutter, Dr. Cartier, etc). Moreover, you can also hit up https://cosmoquest.org/x/ and actually participate in citizen science with Dr. Pam et al

    if you like more than just astronomy and space, check out https://www.sciencedaily.com

    enjoy
     
    BdS likes this.
  15. Yazata Valued Senior Member

    Messages:
    5,326
    Thank you for posting that, BdS.

    I don't really understand why some people here might want to flame you for sharing something that you like, think is valuable, and think that others might like too. I see that as a good thing and again thank you for it.

    This board would be a better place is it included less personality-battles and divisive moralizing, and more directions to stimulating and free educational material.

    A website that I like and recommend for discussion of spacecraft engineering (as opposed to astronomy per se) is Tim Dodd's "Everyday Astronaut" website. He makes videos explaining various aspects of "rocket science" that are understandable by laymen. Tim's making quite a reputation for himself with his videos, he recently scored a 15 minute one-on-one interview with Jim Bridenstine, the NASA Administrator, and earlier a similar one-on-one interview with Elon Musk. (Both of whom are fans of his site.)

    https://everydayastronaut.com/

    An example is his discussion of SpaceX's Raptor engine, which necessarily includes a little primer on how various representative rocket engines work, their fuel flow cycles, pressures, temperatures and pump arrangements. (Do you know what a "preburner" is?)

    https://everydayastronaut.com/raptor-engine/

    Please Register or Log in to view the hidden image!

     
    Last edited: Oct 20, 2019
    BdS likes this.
  16. Truck Captain Stumpy The Right Honourable Reverend Truck Captain Valued Senior Member

    Messages:
    1,263
    offered IMHO only: it's most likely because of where it is posted: > Astronomy, Exobiology, & Cosmology
    and let's not forget trolling ...
    I don't know if you have it or not but here are two links to some free educational material:
    https://ocw.mit.edu/courses/find-by-topic/

    http://www.iop.org/
     
    BdS likes this.
  17. Yazata Valued Senior Member

    Messages:
    5,326
    Here's something kind of interesting from Phys.org's astronomy and space news:

    A group of Japanese astrophysicists think that it's possible for planets to form not only in stellar accretion disks, but in black-hole accretion disks as well, including the super-massive black holes at the center of galaxies, which may play host to really huge planetary systems. Since the inner reaches of these accretion disks would be extremely energetic, it's hypothesized that these proposed planets might be distant, parsecs out from the black hole. And it's speculated that a single super-massive black hole might have lots of these planets.

    They say: "Planetary systems are ubiquitous -- more than four thousand exoplanets have been discovered thus far. However, proplanetary disks around stars may not be the only site for planet formation in the universe. Here we propose a new site of "planet" formation: the circumnuclear disk around supermassive plack holes (SMBHs)."

    But they also say...

    "Observing planets around SMBHs should be challenging. The standard techniques to detect exoplanets around stars, i.e., Doppler spectroscopy, transit photometry, gravitational micro-lensing, or direct imaging are hopeless. Photometry by a hard X-ray interferometer in space might be a possible solution, but the occultation of the accretion disk by the "planets" would be hard to distinguish from the intrinsic time variability of AGNs. The other, indirect way is detecting spectral changes in the mm-wave length due to opacity variation associated with the dust growth as used in protoplanetary disk."

    https://phys.org/news/2019-11-planets-black-hole-possibility-bizarre.html

    The abstract

    https://arxiv.org/abs/1909.06748

    The paper:

    https://arxiv.org/pdf/1909.06748.pdf

    Listen up, Science Fiction writers! Imagine an alien civilization with THAT rising in the sky every morning, bathing your alien skin and your beautiful tentacles in warm, healthful hard radiation.

    Please Register or Log in to view the hidden image!

     
    Last edited: Nov 26, 2019
    BdS and Truck Captain Stumpy like this.
  18. Michael 345 New year. PRESENT is 70 years old Valued Senior Member

    Messages:
    9,091
    I only go out in hard radiation with Hard Radiation Factor 2 million applied

    Please Register or Log in to view the hidden image!

     
    Truck Captain Stumpy likes this.
  19. BdS Registered Senior Member

    Messages:
    457
    Explains the toenails

    Please Register or Log in to view the hidden image!




    https://phys.org/news/2019-12-astronomers-galaxy-protoclusters.html
    "Galaxy clusters contain up to thousands of galaxies bound together by gravity. They are the largest known gravitationally bound structures in the universe, and could serve as excellent laboratories for studying galaxy evolution and cosmology."
    Do all the galaxies in the cluster orbit each other, is that how they are bound to the cluster? or do they all orbit a common center?
     

Share This Page