Astronomy & science · first seen 9h ago, updated 9h ago
A Dutch schoolteacher clicking through galaxy images on a volunteer website in 2007 flagged a green smudge she couldn’t identify and asked what it was. It turned out to be a cloud of gas lit by a quasar that had already switched off, and astronomers named the object after her.
An amateur astronomer's casual observation became a cosmic mystery that still puzzles scientists today. The post A Dutch schoolteacher clicking through galaxy images on a volunteer website in 2007 flagged a green smudge she couldn’t identif…
Summary from SpaceDaily.