The Hubble Space Telescope Still Works Great—Except When It Doesn't
None of us are perfect, and sometimes the Hubble Space Telescope just flat-out points to the wrong spot in the sky. This has been happening more than ever in the last couple years.
Mike Brown has been using the Hubble Space Telescope pretty consistently for most of the past three decades, since it launched in 1990. But recently he had an experience with Hubble that he never had before.
, an astronomer at Caltech, got permission to use Hubble to do a detailed study of Jupiter's four largest moons. These moons are called the, since Galileo Galilei spotted them in 1610.
