Recent content by JAS

  1. J

    The Chandra X-ray spacecraft may soon go dark, threatening a great deal of astronomy

    I wonder if NASA has ever considered "selling" for a dollar an operational satellite it doesn’t have the operating budget to maintain in terms of program resources. The “purchasing” space agency would inherit a working satellite with some time remaining on its ‘clock’ along with the obligation...
  2. J

    The Chandra X-ray spacecraft may soon go dark, threatening a great deal of astronomy

    Well, if the politics of science can't be discussed, then Space.com should be following its own rules and not post political-issue stories like budget cancellations. Personally, I don't see the difficulty with recognizing and discussing the issue of science funding since it is very relevant...
  3. J

    How environmentally friendly is SpaceX's Starship?

    A few points for your consideration: 1) For those interested, Everyday Astronaut does a good more in-depth review of rocket pollution issues at the following link: View: https://www.youtube.com/watch?v=C4VHfmiwuv4 2) I believe Musk plans to develop a non-fossil-fuel Methane source...
  4. J

    FAA to oversee investigation of SpaceX Starship's 3rd test flight

    Thanks for your insight into the rules and regs under which the FAA operates and which they use to define a 'mishap'. However, I didn't find that any of those criteria applied to the 3rd test, and even the 2nd test, including the 3 you noted as applicable. For example: 1) Unplanned permanent...
  5. J

    Bad news for alien life? Even calm red dwarf stars rage more violently than the sun

    These outbursts, as well as eruptions of scorching-hot plasma known as coronal mass ejections (CMES), can be incredibly destructive to planets orbiting red dwarfs, stripping their atmospheres and emitting enough radiation to boil away liquid water While these flares may be strong enough to...
  6. J

    Antarctic sea ice hits record low, satellites reveal

    Hi PWB, thanks for your thoughtful response. As I reflect from my 'arm-chair' on the concern you've expressed, I wonder if the bias you detect might be related to the way in which science journalism operates. As I understand it, journalists see some new study coming out, and write up a...
  7. J

    Antarctic sea ice hits record low, satellites reveal

    The whole issue of antarctic ice levels and its relationship to Climate Change and global sea levels is really quite complex and beyond the expertise of arm-chair experts, including myself. You're an arm-chair expert if you hold strong opinions on the subject but don't have extensive experience...
  8. J

    Antarctic sea ice hits record low, satellites reveal

    This is a science-based web-site, and so the article is written to an audience that is knowledgeable enough to know that long-term historic ice levels in the Antarctic and Arctic since the peak of last ice age about 21,000 years ago are known to be much higher than modern levels. No hysteria...