Imagine having three clocks in your house, each chiming at a different time. Astronomers have found the equivalent of three out-of-sync "clocks" in the ancient open star cluster NGC 6791. The dilemma may fundamentally challenge the way astronomers estimate cluster ages, researchers said.
PlanetBye is a blog run by Bente Lilja Bye aka Stellare. PlanetBye covers mainly scientific topics but also completely random topics like art, social media, personal ramblings etc. The posts on this blog are generally short with links to further reading and sources of information. Clicking on images is encouraged.