Absolute Magnitude Space
What the instrument actually returned, before the conversion that became the headline.
The Event Horizon Telescope Never Took a Photograph
The famous orange ring is not a photograph, and no instrument in the array ever recorded an image. Eight telescopes recorded arrival times; two conversions did the rest.
12,500 Red Giants Caught Gaia Overcorrecting Itself
Every star with a convective envelope is ringing right now. This episode measures distance by listening to that ring, never once touching a parallax -- and uses it to catch a space...
Nobody Has Ever Measured the Distance to a Galaxy
Every distance beyond about three thousand parsecs was calculated, not measured. There is exactly one rung of the ladder that is pure geometry, and it is very short.
The Star That Shrank by a Third (and nobody took a new photo)
UY Scuti is the largest star you have ever been told about: 1,708 times the radius of the Sun. That number was never measured. What was measured is an angle.