James Webb Space Telescope captures the image a very young neutron star

SN 1987A was one of the few supernovae that people could see with naked eyes . It was first observed in February 1987 and is situated in the Large Magellanic Cloud 1,60,000 light years away. A star of about 19 times the mass of the Sun had exploded to form a neutron star of mass 1.4 times (estimated) that of the Sun. While there were theoretical models and indirect evidence of the the formation of neutron star was there, using James Webb telescope, the scientists were able to observe direct evidence of the presence of a probable neutron star.    Image source: https://webbtelescope.org/contents/news-releases/2024/news-2024-112

Long term storage of Cyanobacteria

I wanted to make stocks of cyanobacteria for my work and I found the following method most comfortable.

  • Make a solution of 10% v/v methanol using the bacterial medium as solvent NOT just water and autoclave.
  • While maintaining sterile conditions, take 0.5 ml of log-phase cyanobacterial culture in a 1.5ml vial.
  • To this add 0.5ml of 10% methanol solution.
  • Mix by inversion.
  • Store the vial at -20 degree Celsius.

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