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Image: Prometheus Plays Tug of War with One of Saturn's Rings

Nov 25, 2009 | 4 / 5 (3) | 0

(PhysOrg.com) -- The diminutive moon Prometheus whips gossamer ice particles out of Saturn's F ring in this image taken by the Cassini spacecraft on Aug. 21, 2009.

Cassini Captures Ghostly Dance of Saturn's Northern Lights (w/ Video)

Space & Earth / Space Exploration

Nov 24, 2009 | 4.9 / 5 (9) | 1

(PhysOrg.com) -- In the first video showing the auroras above the northern latitudes of Saturn, Cassini has spotted the tallest known "northern lights" in the solar system, flickering in shape and brightness ...

Cassini Sends Back Images of Enceladus as Winter Nears

Space & Earth / Space Exploration

Nov 23, 2009 | 4.4 / 5 (7) | 0

(PhysOrg.com) -- NASA's Cassini spacecraft has sailed seamlessly through the Nov. 21 flyby of Saturn's moon Enceladus and started transmitting uncalibrated temperature data and images of the rippling terrain. ...

Cassini's Big Sky: The View from the Center of Our Solar System

Space & Earth / Space Exploration

Nov 20, 2009 | 4.8 / 5 (15) | 1

(PhysOrg.com) -- When NASA's Cassini spacecraft began orbiting Saturn five years ago, a dozen highly-tuned science instruments set to work surveying, sniffing, analyzing and scrutinizing the Saturnian system.

Before Darkness Falls: Cassini to Scan Enceladus on Winter's Cusp

Space & Earth / Space Exploration

Nov 20, 2009 | 4.5 / 5 (2) | 0

(PhysOrg.com) -- NASA's Cassini spacecraft will fly by Saturn's moon Enceladus this weekend for a last peek at the intriguing "tiger stripes" before winter darkness blankets the area for several years.

Ghostly 'Spokes' Puff Out From Saturn's Ring's (w/ Video)

Space & Earth / Space Exploration

Nov 16, 2009 | 4.5 / 5 (6) | 0

(PhysOrg.com) -- Massive, bright clouds of tiny ice particles hover above the darkened rings of Saturn in an image captured by the Cassini spacecraft on Sept. 22, 2009, around the time of Saturn's equinox. ...

Rosetta spacecraft may help unravel cosmic mystery (w/ Video)

Space & Earth / Space Exploration

Nov 12, 2009 | 5 / 5 (3) | 4

When Europe's comet chaser Rosetta swings by Earth tomorrow for a critical gravity assist, tracking data will be collected to precisely measure the satellite's change in orbital energy. The results could help ...

Successful Flight Through Enceladus Plume (w/ Video)

Space & Earth / Space Exploration

Nov 04, 2009 | 4.7 / 5 (3) | 0

(PhysOrg.com) -- Cassini has started sending data back from its Nov. 2 flyby of Saturn's moon Enceladus.

Fantastic Voyage

Space & Earth / Space Exploration

Nov 02, 2009 | 4.8 / 5 (19) | 3

By travelling to the outer solar system, the two Voyager spacecraft allowed us to see amazing details of far-distant planets and moons.

A long night falls over Saturn's rings

Space & Earth / Space Exploration

Oct 24, 2009 | 4.8 / 5 (6) | 4

As Saturn's rings orbit the planet, a section is typically in the planet's shadow, experiencing a brief night lasting from 6 to 14 hours. However, once approximately every 15 years, night falls over the entire ...

Cassini Data Help Redraw Shape of Solar System (w/ Video)

Space & Earth / Space Exploration

Oct 16, 2009 | 4.7 / 5 (13) | 0

(PhysOrg.com) -- Images from the Ion and Neutral Camera on NASA's Cassini spacecraft suggest that the heliosphere, the region of the sun's influence, may not have the comet-like shape predicted by existing ...

UNH space scientists help catch the interstellar wind

Scientists Explore Galactic Frontier, Release First-Ever All-Sky Map (w/ Video)

Space & Earth / Space Exploration

Oct 15, 2009 | 4.8 / 5 (23) | 2

(PhysOrg.com) -- NASA's Interstellar Boundary Explorer, or IBEX, spacecraft has made it possible for scientists to construct the first comprehensive sky map of our solar system and its location in the Milky ...

A Hazy View of Early Earth

Space & Earth / Earth Sciences

Oct 12, 2009 | 4.3 / 5 (4) | 3

Haze in the early Earth atmosphere could have played a crucial role in the origin of life. By forming a protective shield, the haze would have safeguarded organic substances from harmful ultraviolet (UV) radiation. ...

Hot Debate over Icy Moon

Space & Earth / Space Exploration

Oct 08, 2009 | 4.6 / 5 (5) | 0

The recent discovery of plumes containing water vapor erupting from the south pole of the frigid Saturnian moon Enceladus set off a firestorm of debate.