30 years ago, astronauts saved the Hubble Space Telescope

[Admin]

Launched with faulty vision, the Hubble Space Telescope and NASA were a laughing stock – until seven astronauts performed a series of daring spacewalks to fix it.

30 years ago, astronauts saved the Hubble Space Telescope : Read more

 

[Hilbert Space]

The verb is "grinding".

 

[MikeMc]

The verb is "grinding".

Also, It's 20/20, not 20:20 at least in American English. But I noticed that the journalist is from the UK so maybe they write it as 20:20 in the UK. But in the U.S. it is definitely 20/20.