Search results for Cassini

Astrobiology May 13, 2024

Discovery of biomarkers in space—conditions on Saturn's moon Enceladus simulated in the laboratory

In 2018, very large organic molecules were discovered in ice particles on Saturn's moon Enceladus. It is still unclear whether they indicate the existence of life or were created in some other way. A recent study could help ...

Astronomy May 10, 2024

Is dark matter's main rival theory dead? The Cassini spacecraft and other recent tests may invalidate MOND

One of the biggest mysteries in astrophysics today is that the forces in galaxies do not seem to add up. Galaxies rotate much faster than predicted by applying Newton's law of gravity to their visible matter, despite those ...

Astrobiology Apr 30, 2024

Enceladus spills its guts through strike–slip motion

Over the course of its elliptical orbit, the moon Enceladus is squeezed unevenly by Saturn's gravitational pull and deforms from a spherical shape into a football shape and back again. This cyclic stress causes a phenomenon ...

Planetary Sciences Apr 18, 2024

Are Titan's dunes made of comet dust?

A new theory suggests that Titan's majestic dune fields may have come from outer space. Researchers had always assumed that the sand making up Titan's dunes was locally made, through erosion or condensed from atmospheric ...

Astrobiology Apr 17, 2024

Saturn's ocean moon Enceladus could support life—researchers are working out how to detect extraterrestrial cells there

Saturn has 146 confirmed moons—more than any other planet in the solar system—but one called Enceladus stands out. It appears to have the ingredients for life.

Planetary Sciences Apr 10, 2024

If Europa has geysers, they're very faint

In 2013, the Hubble Space Telescope spotted water vapor on Jupiter's moon Europa. The vapor was evidence of plumes similar to the ones on Saturn's moon Enceladus. That, and other compelling evidence, showed that the moon ...

Astrobiology Apr 4, 2024

Why there may be oceans inside dwarf planets beyond Pluto—and what this means for the likely abundance of life

Earth was long thought to be the only planet in our solar system with an ocean, but it is beginning to look as though there are underground oceans inside even the most surprising icy bodies.

Space Exploration Mar 26, 2024

Saturn's moon Enceladus top target for ESA

A fresh, icy crust hides a deep, enigmatic ocean. Plumes of water burst through cracks in the ice, shooting into space. An intrepid lander collects samples and analyzes them for hints of life.

Astrobiology Mar 22, 2024

Signs of life detectable in single ice grain emitted from extraterrestrial moons, experimental setup shows

The ice-encrusted oceans of some of the moons orbiting Saturn and Jupiter are leading candidates in the search for extraterrestrial life. A new lab-based study led by the University of Washington in Seattle and the Freie ...

Space Exploration Mar 18, 2024

As Voyager 1's mission draws to a close, one planetary scientist reflects on its legacy

For nearly 50 years, NASA's Voyager 1 mission has competed for the title of deep space's little engine that could. Launched in 1977 along with its twin, Voyager 2, the spacecraft is now soaring more than 15 billion miles ...

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