Planets

 Cosmic Tribune

Jupiter’s largest moon poses with our solar system’s largest storm

Jupiter’s largest moon poses with our solar system’s largest storm

[CLICK ON IMAGE FOR HIGH RESOLUTION, Damian Peach/SEN] In this sharp snapshot, the Solar System’s largest moon Ganymede poses next to Jupiter, the largest planet. Captured on March 10 with a small telescope from our fair planet Earth, the scene also includes Jupiter’s Great Red Spot, the Solar System’s largest storm. In fact, Ganymede is […]

 Cosmic Tribune

Red sunset from green Earth, blue sunset from red Mars

Red sunset from green Earth, blue sunset from red Mars

[CLICK ON IMAGE FOR HIGH RESOLUTION, Left Image: Damia Bouic; Right Image: NASA, JPL-Caltech] How different does sunset appear from Mars than from Earth? For comparison, two images of our common star were taken at sunset, one from Earth and one from Mars. These images were scaled to have same angular width and featured here […]

 Cosmic Tribune

True believers at NASA press search for ETs within two decades

True believers at NASA press search for ETs within two decades

NASA claims we’ll find aliens in the next 10 to 20 years – and now the agency is revving up its efforts to track them down. The group has put together a team of ‘extraterrestrial experts’ to see if any of the planets discovered outside our solar system are habitable. …The initiative, dubbed Nexus for […]

 Cosmic Tribune

Venus, for now, our evening star

Venus, for now, our evening star

[CLICK ON IMAGE FOR HIGH RESOLUTION, Babak Tafreshi (TWAN)] In the coming days, Venus shines near the western horizon at sunset. To find Earth’s sister planet in twilight skies just look for the brilliant evening star. Tonight very close to the Pleiades star cluster, Venus dominates this springtime night skyscape taken only a few days […]

 Cosmic Tribune

What kind of people want a one-way ticket to Mars?

What kind of people want a one-way ticket to Mars?

Early on a Saturday morning, about 60 planetary malcontents gathered in a narrow auditorium on the campus of George Washington University. They’d come to hear about a plan to build a self-sustaining colony in space, and they hoped to be among its first settlers, leaving the rest of us to live and die on Earth. […]

 Cosmic Tribune

Whirlwind spotted on Mars

Whirlwind spotted on Mars

[CLICK ON IMAGE FOR HIGH RESOLUTION, HiRISE, MRO, LPL (U. Arizona), NASA] It was late in the northern martian spring when the HiRISE camera onboard the Mars Reconnaissance Orbiter spied this local denizen. Tracking across the flat, dust-covered Amazonis Planitia in 2012, the core of this whirling dust devil is about 140 meters in diameter. […]

 Cosmic Tribune

The triple conjunction as seen from Charleston, SC

The triple conjunction as seen from Charleston, SC

[CLICK IN IMAGE FOR HIGH RESOLUTION, Kevin Bourque] Venus, named for the Roman goddess of love, and Mars, the war god’s namesake, came together by moonlight in this lovely skyview, recorded on Feb. 20 from Charleston, South Carolina, USA, planet Earth. Made in twilight with a digital camera, the three second time exposure also records […]

 Cosmic Tribune

Neptune! Bitter cold winds here? Think 2000 km/hour gusts

Neptune! Bitter cold winds here? Think 2000 km/hour gusts

[CLICK ON IMAGE FOR HIGH RESOLUTION, Voyager 2, NASA] Two hours before [its] closest approach to Neptune in 1989, the Voyager 2 robot spacecraft snapped this picture. Clearly visible for the first time were long light-colored cirrus-type clouds floating high in Neptune’s atmosphere. Shadows of these clouds can even be seen on lower cloud decks. […]

 Cosmic Tribune

Hubble does it again! A Jupiter triple-moon conjunction

Hubble does it again! A Jupiter triple-moon conjunction

[CLICK ON IMAGE FOR HIGH RESOLUTION: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)] Our solar system’s ruling giant planet Jupiter and 3 of its 4 large Galilean moons are captured in this single Hubble snapshot from Jan. 24. Crossing in front of Jupiter’s banded cloud tops Europa, Callisto, and Io are framed from lower […]

 Cosmic Tribune

A view of majestic Saturn, its rings and moon Rhea, courtesy of the Cassini spacecraft

A view of majestic Saturn, its rings and moon Rhea, courtesy of the Cassini spacecraft

[CLICK ON IMAGE FOR HIGH RESOLUTION, Cassini Imaging Team, SSI, JPL, ESA, NASA] Soft hues, partially lit orbs, a thin trace of the ring, and slight shadows highlight this understated view of the majestic surroundings of the giant planet Saturn. Looking nearly back toward the Sun, the robot Cassini spacecraft now orbiting Saturn captured crescent […]