Io Afire With Volcanoes Under Juno’s Gaze

Volcanic activity on Io was discovered by Voyager 1 imaging scientist Linda Morabito. She spotted a little bump on Io’s limb while analyzing a Voyager image and thought at first it was an undiscovered moon. Moments later she realized that wasn’t possible — it would have been seen by earthbound telescopes long ago. Morabito and […]

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What Will the Voyager Spacecraft Encounter Next? Hubble Helps Provide a Roadmap

The twin Voyager spacecraft are now making their way through the interstellar medium. Even though they are going where none have gone before, the path ahead it is not completely unknown. Astronomers are using the Hubble Space Telescope to observe the ‘road’ ahead for these pioneering spacecraft, to ascertain what various materials may lay along […]

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Weekly Space Hangout – Sept 23, 2016: Dr. Frank Timmes and Online Astronomy Education

Host: Fraser Cain (@fcain) Special Guests: Dr. Frank Timmes is an astrophysicist at Arizona State University and will be discussing online astronomy education and the Global Freshman Academy. His interests include the universe’s evolving composition and its implications for life in the universe. Dr. Timmes’ current area of research is nuclear astrophysics and the creation […]

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Hubble Sees Changes in Jupiter’s Red Spot, a Weird Wisp and Rare Waves

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 […]

Red-faced Pluto Full of Surprises

Hey, Mars, you’ve got company. Looks like there’s a second “red planet” in the Solar System — Pluto. Color images returned from NASA’s New Horizons spacecraft, now just 10 days from its encounter with the dwarf planet, show a distinctly ruddy surface with patchy markings that strongly resemble Mars’ appearance in a small telescope.(…)Read the rest […]

Weekly Space Hangout – February 20, 2015 – Charles Black from SEN

Host: Fraser Cain (@fcain) Guests: Ramin Skibba (@raminskibba) Dave Dickinson (@astroguyz / www.astroguyz.com) Special Guest: Charles Black (@charlesblack / sen.com/charles-black) (…)Read the rest of Weekly Space Hangout – February 20, 2015 – Charles Black from SEN (283 words) © Fraser for Universe Today, 2015. | Permalink | No comment | Post tags: AAAS, Apollo, Curiosity, […]

25 Years Since Voyagers ‘Pale Blue Dot’ Images

A quarter of a century has passed since NASA’s Voyager 1 spacecraft snapped the iconic image of Earth known as the “Pale Blue Dot” that shows all of humanity as merely a tiny point of light. The outward bound Voyager 1 space probe took the ‘pale blue dot’ image of Earth 25 years ago on […]

Uranus Bland? Nope, It’s A Stormy Planet With Interesting Insides

Sometimes first impressions are poor ones. When the Voyager 2 spacecraft whizzed by Uranus in 1986, the close-up view of the gas giant revealed what appeared to a be a relatively featureless ball. By that point, scientists were used to seeing bright colors and bands on Jupiter and Saturn. Uranus wasn’t quite deemed uninteresting, but […]

Bumper Car Moonlets Crash and Crumble in Saturn’s F Ring

Nothing stands still. Everything evolves. So why shouldn’t Saturn’s kookie, clumpy F ring put on a new face from time to time? (…)Read the rest of Bumper Car Moonlets Crash and Crumble in Saturn’s F Ring (612 words) © Bob King for Universe Today, 2014. | Permalink | One comment | Post tags: Cassini, clumps, F-Ring, […]