ScienceHubble Spots 'Smiling Face' While Looking For New Stars NASA released a photo of dozens of distant galaxy clusters taken by the Hubble Space Telescope. Gravitational lensing has caused some of the light from the galaxies to look like a smiling face.by Diane Samson
ScienceHow Do You Fix The Multibillion-Dollar Hubble Space Telescope? By Turning It Off And On Againby Diane Samson