M3 was the first globular cluster Charles Messier discovered for his catalog. To see M4’s oldest white dwarfs, Hubble took ...

and more listed in past catalogs had been observed with telescopes ranging in size from Messier's 4-inch refractor to the 72-inch reflector of Lord Rosse. Verifying every object listed in previous ...

However, it wasn’t until the work of Edwin Hubble (for which the famous telescope is named) that astronomers realized objects like Messier 83 are ... Víctor M Blanco 4-m telescope at Cerro ...