The Space Show, hosted by David Livingston at www.TheSpaceShow.com, will have the following guests this week:
1. Monday, July 27, 2015, 2-3:30 PM PDT (21-22:30 GMT)
DR. ROBERT PAPPALARDO of JPL. He is heading up the NASA Europa mission.
Robert Pappalardo is a Senior Research Scientist in the Planetary Science Section, Science Division. Pappalardo's research focuses on processes that have shaped the icy satellites of the outer solar system, especially Europa and the role of its probab [...]
It has been one of the better skies of this long night. In parts of Antarctica, not only is it winter, but the Sun can spend weeks below the horizon. At China's Zhongshan Station, people sometimes venture out into the cold to photograph a spectacular night sky. The featured image from one such outing was taken in mid-July, just before the end of this polar night.
Pointing up, the wide angle lens captured not only the ground at the bottom, but at the top as well. In the foreground is a collea [...]
Why does the Sombrero Galaxy look like a hat? Reasons include the Sombrero's unusually large and extended central bulge of stars, and dark prominent dust lanes that appear in a disk that we see nearly edge-on. Billions of old stars cause the diffuse glow of the extended central bulge. Close inspection of the bulge in the above photograph shows many points of light that are actually globular clusters.
M104's spectacular dust rings harbor many younger and brighter stars, and show intricate det [...]
The Trifid Nebula, also known as Messier 20, is easy to find with a small telescope, a well known stop in the nebula rich constellation Sagittarius. But where visible light pictures show the nebula divided into three parts by dark, obscuring dust lanes, this penetrating infrared image reveals filaments of glowing dust clouds and newborn stars.
The spectacular false-color view is courtesy of the Spitzer Space Telescope. Astronomers have used the Spitzer infrared image data to count newborn an [...]
Flowing ice and a surprising extended haze are among the newest discoveries from NASA’s New Horizons mission, which reveal distant Pluto to be an icy world of wonders.
“We knew that a mission to Pluto would bring some surprises, and now -- 10 days after closest approach -- we can say that our expectation has been more than surpassed,” said John Grunsfeld, NASA’s associate administrator for the Science Mission Directorate. “With flowing ices, exotic surface chemistry, mountain ranges [...]
The International Space Station is at full strength now with six crew members from Japan, Russia and the United States. The newly-expanded orbital team got together today to review their roles and responsibilities in the event of an emergency in space.
New station residents Oleg Kononenko, Kjell Lindgren and Kimiya Yui will be familiarizing themselves with their new home in space over the next few days. While they adapt to their new workplace the trio will also be getting up to speed with dai [...]
This week's image of the week looks at Supernova remnant W44 and its environment (November 2012). The large purple area on the left of the image is supernova remnant W44, measuring at about 100 light-years across. Data from the European …
Second Mission for the U.S. Air Force Launched in Eight Days.
Cape Canaveral Air Force Station, Fla. – A United Launch Alliance (ULA) Delta IV rocket successfully launched the seventh Wideband Global SATCOM (WGS) communications satellite for the U.S. Air Force at 8:07 p.m. EDT today from Space Launch Complex-37. This is ULA’s seventh launch in 2015 and the second successful ULA launch in just eight days. Today marks ULA’s 98th successful one-at-a-time launch since the company was formed [...]
An international team of astronomers from Canada and the United States recently discovered 42 new brown dwarfs using data from the near-infrared imager and spectrograph Flamingos-2 at Gemini South and other telescopes in Chile and Hawai’i. The team used Flamingos-2’s near-infrared spectroscopic capabilities to study a total of 101 targets from 2013 to 2015.
The work, led by Jonathan Gagne, from the University of Montreal, confirmed signs of low-gravity for 42 of the objects with estimate [...]
Approaching the third anniversary of its landing on Mars, NASA's Curiosity Mars rover has found a target unlike anything it has studied before -- bedrock with surprisingly high levels of silica. Silica is a rock-forming compound containing silicon and oxygen, commonly found on Earth as quartz.
This area lies just downhill from a geological contact zone the rover has been studying near "Marias Pass" on lower Mount Sharp.
The rover had reached this area after a steep climb up a 20-foot (6 [...]
A mere 2.5 million light-years away the Andromeda Galaxy, also known as M31, really is just next door as large galaxies go. So close and spanning some 260,000 light-years, it took 11 different image fields from the Galaxy Evolution Explorer (GALEX) satellite's telescope to produce this gorgeous portrait of the spiral galaxy in ultraviolet light.
While its spiral arms stand out in visible light images of Andromeda, the arms look more like rings in the GALEX ultraviolet view, a view dominated [...]