Search results for ice free

Analytical Chemistry Apr 25, 2024

Freeze casting—a guide to creating hierarchically structured materials

Freeze casting is an elegant, cost-effective manufacturing technique to produce highly porous materials with custom-designed hierarchical architectures, well-defined pore orientation, and multifunctional surface structures. ...

Planetary Sciences Apr 24, 2024

Signs of 'spider' phenomenon on Mars

ESA's Mars Express has snapped the telltale traces of "spiders" scattered across the southern polar region of Mars.

Plasma Physics Apr 23, 2024

Record electron temperatures for a small-scale, sheared-flow-stabilized Z-pinch fusion device achieved

In the nine decades since humans first produced fusion reactions, only a few fusion technologies have demonstrated the ability to make a thermal fusion plasma with electron temperatures hotter than 10 million degrees Celsius, ...

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 ...

Planetary Sciences Apr 15, 2024

Orbital eccentricity may have led to young underground ocean on Saturn's moon Mimas

Saturn's moon Mimas could have grown a huge underground ocean as its orbital eccentricity decreased to its present value and caused its icy shell to melt and thin.

Space Exploration Apr 12, 2024

NASA unveils probe bound for Jupiter's possibly life-sustaining moon

US space scientists on Thursday unveiled the interplanetary probe NASA plans to send to one of Jupiter's icy moons as part of humanity's hunt for extra-terrestrial life.

Plants & Animals Apr 11, 2024

Swifts need more nest boxes, but that alone won't be enough. Here's why

Swifts need two things. Safe, dry, nest holes high up on walls and lots of flying insects to eat—but both are in decreasing supply.

Earth Sciences Apr 10, 2024

The limits of ice: What a 19th-century expedition trapped in sea ice for a year tells us about Antarctica's future

In 1897, the former whaling ship RV Belgica left Antwerp in Belgium and set sail due south. It was the first voyage of what would become known as the Heroic Age of Antarctic exploration. It did not go to plan.

Environment Apr 9, 2024

Antarctica's sea ice hit another low this year—understanding how ocean warming is driving the loss is key

At the end of the southern summer, Antarctica's sea ice hit its annual minimum. By at least one measure, which tracks the area of ocean that contains at least 15% of sea ice, it was a little above the record low of 2023.

Astrobiology Apr 6, 2024

If life exists on Jupiter's moon Europa, scientists might soon be able to detect it

Europa is one of the largest of more than 90 moons in orbit around the planet Jupiter. It is also one of the best places to look for alien life.

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