hip replacement surgery

hip replacement surgery

Still sharp, Hubble Space Telescope turns 25 with great Picture of Westerlund 2

1d ago
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The Hubble Space Telescope turns 25 on Friday, but no one should call it old. It’s mature. It’s the great silverback of astronomy, grizzled from wear and tear and yet still powerful and utterly dominant in its field. The Hubble helped change our understanding of the age of the universe, the evolution of galaxies and the expansion of space itself. Along the way it has had the equivalent of knee and hip replacement surgery: Five times, astronauts on the space shuttle paid a visit to swap out old batteries and install new instruments, including, in 2009, the best camera the telescope has ever had. How deep into the cosmos can the Hubble see? Deeper than you, punk. “It’s fantastic. It’s better than ever. That’s not just hype, it’s the truth,” said Jennifer J. Wiseman, the senior project scientist for the Hubble at NASA’s Goddard Space Flight Center.