Five time space shuttle astronaut and current NASA science chief John Grunsfeld – best known as the ‘Hubble Hugger’ for three critical and dramatic servicing and upgrade missions to the iconic Hubble Space Telescope – his decided to retire from the space agency he faithfully served since being selected as an astronaut in 1992.
Host: Fraser Cain (@fcain) Guests: Carolyn Collins Petersen (thespacewriter.com / space.about.com / @spacewriter ) Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg ) Kimberly Cartier (@AstroKimCartier ) Dave Dickinson (www.astroguyz.com / @astroguyz) Jolene Creighton (fromquarkstoquasars.com / @futurism) Paul Sutter (pmsutter.com / @PaulMattSutter) ‘); } //–>
People often criticize the amount of money spent on space exploration. Sometimes it’s well-meaning friends and family who say that that money is wasted, and would be better spent on solving problems here on Earth. In fact, that’s a whole cultural meme. You see it played out over and over in the comments section whenever […]
Jupiter global map created from still images from the Hubble Space Telescope It’s been widely reported, including at Universe Today, that the apple of Jupiter’s eye, the iconic Great Red Spot (GRS), has been shrinking for decades. Even the rate of shrinkage has been steadily increasing. Back in the late 1800s you could squeeze three Earths inside […]
Decades after its momentous launch, the ever popular Hubble Space Telescope merrily continues its trajectory in low-earth orbit, and it still enables cutting-edge science. Astronomers utilized Hubble and its instruments over the years to obtain iconic images of the Crab Nebula, the Sombrero Galaxy, the Ultra Deep Field, and many others that captured the public […]
Host: Fraser Cain (@fcain) Special Guest: This week we welcome Dr. Bradley M. Peterson, whose research is directed towards determination of the physical nature of active galactic nuclei. Guests: Jolene Creighton (@jolene723 / fromquarkstoquasars.com) Charles Black (@charlesblack / sen.com/charles-black) Brian Koberlein (@briankoberlein / briankoberlein.com) Dave Dickinson (@astroguyz / www.astroguyz.com) Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg ) […]
Even the Empire’s planet-blasting battle station has nothing compared to the immense energy being fired from the heart of NGC 3862, a supermassive black hole-harboring elliptical galaxy located 300 million light-years away. And while jets of high-energy plasma coming from active galactic nuclei have been imaged before, for the first time activity within a jet has been observed in optical wavelengths, […]
The latest views of Ceres’ enigmatic white spots are sharper and clearer, but it’s obvious that Dawn will have to descend much lower before we’ll see crucial details hidden in this overexposed splatter of white dots. Still, there are hints of interesting things going on here. The latest photo is part of a sequence of images […]