blog:articles:science:mysterious_star

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    - Magnetic Field Lines on a Galactic Scaleplugin-autotooltip__default plugin-autotooltip_bigMagnetic Field Lines on a Galactic Scale
      
      [Powerful magnetic fields are visible]
      
      The Cigar galaxy (M82) is already famous for the speed at which it creates new stars. The composite image shows the powerful magnetic field lines on a truly epic scale, wrapping around the entire galaxy. NASA's SOFIA observatory (Stratospheric Observatory for Infrared Astronomy - a converted Boeing 747) has shed light on what is happening.
    - Dragonfly to Explore Titanplugin-autotooltip__default plugin-autotooltip_bigDragonfly to Explore Titan
      
      Credits: NASA/JHU-APL Few worlds excite exoplanetary chemists like Titan, Saturn's enigmatic and largest moon. It is the second-largest moon in the solar system, and the only one known to have a dense atmosphere. As such, it is seen as an analogue to the early Earth, and therefore important in understanding how life might have evolved on our homeworld.
    - How Big Is The Universe?plugin-autotooltip__default plugin-autotooltip_bigHow Big Is The Universe?
      
      [Hubble deep Field Image]
      
      I recently came across a youtube video explaining a method for multiplication that was quite different from long multiplication. To explain why this was so interesting, let’s first talk about long multiplication and what’s wrong with it, and then we'll calculate the size of the visible universe in centimeters.
    - Landing the Mars 2020 Rover Safelyplugin-autotooltip__default plugin-autotooltip_bigLanding the Mars 2020 Rover Safely
      
      Autonomous landings are always fraught with danger. One of the most dangerous terrains any landing might occur on is a boulder field. Not only would the impact of the landing on these hard objects be a threat, but the boulders are likely to be jagged too. Another threat are the steep cliffs of the crater - not falling off them (although that's a possibility), but crashing into them.
    - Mysterious Starplugin-autotooltip__default plugin-autotooltip_bigMysterious Star
      
      Back in 2016, Tabetha Boyajian gave a TED talk about a star with nifty little name KIC 8462852. The Kepler space telescope had studied it and lots of other stars over the course of four years, but this one stood out.
      
      Also known as Tabby's Star, it is a main-sequence F-type star located in the constellation Cygnus, about 1,480 light-years from Earth. Its claim to fame of course, is that it was suggested that alien megastructures would explain the weird data that Kepler had recor…
    - NASA Got it Wrong - Oops!plugin-autotooltip__default plugin-autotooltip_bigNASA Got it Wrong - Oops!
      
      It's not every day you get the chance to tell NASA they screwed up.
      
      I was reviewing the data I'd collected from NASA's Mars Weather page, and I noticed that the graphs they generated didn't match the summary data.
      
      For example, the summary data for Sol 169 shows the maximum temperature peaking at -17.6°C, while the graph for the same day showed the temperature never rising above -25°C.
    - Scienceplugin-autotooltip__default plugin-autotooltip_bigScience
      
      Articles about science or science are science-centric
      
      How Big is the Universe?
      
      Mysterious Star
      
      Magnetic Field Lines on a Galactic Scale
      
      To the Moon and Mars
      
      NASA Technology Review 2019
      
      NASA Got it Wrong - Oops!
      
      Dragonfly to Explore Titan
      
      Landing Mars 2020 Rover Safely
    - To the Moon and Marsplugin-autotooltip__default plugin-autotooltip_bigTo the Moon and Mars
      
      [The Moon - watch out, here we come (again)!]NASA has outlined an aggressive timetable for an equally aggressive return to the Moon, with a view to making the Moon a waystation for trips to Mars. This requires the development of a whole slew of new technologies, as well as ramping up existing technologies and capabilities to whole new levels.
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startplugin-autotooltip__default plugin-autotooltip_bigI'm a novelist and have an interest in space science and physics. I've been a programmer for more than 30 years and I like reviewing new and up-and-coming authors.

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blog/articles/science/mysterious_star.txt · Last modified: 2019/03/06 10:38 by Phil Ide