In a first for astronomy, a distant supernova has been observed that was previously predicted to appear, has been imaged by a team of astronomers from the University of South Carolina, using the Hubble Space Telescope. The prediction utilized the effect of gravitational lensing, where the gravity of a massive object will bend light from a source behind it around itself, as if it were an optical lens.
read more

What happens when something observed at great distance defies all current expectations and explanations? What happens is an array of strong reactions, including this one from Planetary scientist Todd Clancy of the Space Science Institute – "I don’t think it’s real. … Basic physics says this can’t occur."

And yet, it appears that it has occurred – more than once. It’s just that it wasn’t previously noticed until one day in 2012, when amateur astronomer Wayne Jaeschke of West Chester, Pennsylvania was reviewing footage of Mars that he’d captured in his private observatory.
read more

Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA’s Hubble Space Telescope have uncovered tantalizing evidence for the possible existence of a shell of stars that are a relic of cannibalism by our Milky Way.

Hubble was used to precisely measure, for the first time ever, the sideways motions of a small sample of stars located far from the galaxy’s center. Their unusual lateral motion is circumstantial evidence that the stars may be the remnants of a shredded galaxy that was gravitationally ripped apart by the Milky Way billions of years ago. These stars support the idea that the Milky Way grew, in part, through the accretion of smaller galaxies. read more