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Planetary Sciences 7 hours ago

NASA's Juno gives aerial views of mountain and lava lake on Io

Scientists on NASA's Juno mission to Jupiter have transformed data collected during two recent flybys of Io into animations that highlight two of the Jovian moon's most dramatic features: a mountain and an almost glass-smooth ...

Planetary Sciences 8 hours ago

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 ...

Astronomy 10 hours ago

Hubble goes hunting for small main belt asteroids

Like boulders, rocks, and pebbles scattered across a landscape, asteroids come in a wide range of sizes. Cataloging asteroids in space is tricky because they are faint and they don't stop to be photographed as they zip along ...

Space Exploration Apr 17, 2024

'Tube map' around planets and moons made possible by knot theory

Just as sat-nav did away with the need to argue over the best route home, scientists from the University of Surrey have developed a new method to find the optimal routes for future space missions without the need to waste ...

Social Sciences Apr 17, 2024

The beginnings of modern science shaped how philosophers saw alien life—and how we understand it today

Speculation about extraterrestrials is not all that new. There was a vibrant debate in 17th-century Europe about the existence of life on other planets.

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 17, 2024

James Webb Space Telescope data pinpoint possible aurorae on a cold brown dwarf

Using new observations from the James Webb Space Telescope (JWST), astronomers have discovered methane emission on a brown dwarf, an unexpected finding for such a cold and isolated world. Published in the journal Nature, ...

Planetary Sciences Apr 16, 2024

The history of the young cold traps of the asteroid Ceres

Ceres, the largest asteroid in our solar system, harbors a dark secret: extremely young ice deposits in permanently shadowed craters near its poles. If that sounds vaguely familiar, it's because our moon and planet Mercury ...

Planetary Sciences Apr 16, 2024

Dating the solar system's giant planet orbital instability using enstatite meteorites

Evidence from the fragments of a destroyed asteroid suggests that the shift in the positions of the giant planets in our solar system billions of years ago happened between 60–100 million years after the solar system's ...

Astronomy Apr 16, 2024

A solar neighborhood census, thanks to NASA citizen science

To take a census of nearby cosmic objects, sending out a survey won't work. Scientists need to use many telescopes with different specializations to chart what is in the general neighborhood of the sun.

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