The Hubble Space Telescope is no spring chicken, having operated in space for over 30 years. But the veteran observatory soldiers on. It recently imaged a massive galaxy cluster that could hold secrets about both dark and ordinary matter.
The Hubble Space Telescope is no spring chicken, having operated in space for over 30 years. But the veteran observatory soldiers on. It recently imaged a massive galaxy cluster that could hold secrets about both dark and ordinary matter.