科学与环境

Salt crystals could hold clues to life beneath Enceladus's ice

来源: Phys.org - latest science and technology news stories · 发布于

Salt crystals could hold clues to life beneath Enceladus's ice
来源: Phys.org - latest science and technology news stories

The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.

The ocean beneath Saturn's moon Enceladus lies under kilometers of ice, but some of its contents do reach the surface. Jets near the south pole spray out water vapor and icy particles, offering a way to investigate the hidden ocean without drilling down to it.

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Hand-cranked device tells blood type and red cell levels in 1 minute
科学与环境

Hand-cranked device tells blood type and red cell levels in 1 minute

When someone is badly injured, doctors urgently need two facts: the patient's blood type, so that a transfusion is safe, and their hematocrit, the share of the blood made up of red blood cells, which reveals blood loss or anemia. Hospitals measure both with large machines that ne

Phys.org - latest science and technology news stories ·

The ambiguous costs of climate change
科学与环境

The ambiguous costs of climate change

As human activity has increased temperatures globally, determining the costs directly incurred by climate change is challenging. The effects of climate change on extreme weather events—such as hurricanes and heat waves—can be locally specific and variable, and observations and cl

Phys.org - latest science and technology news stories ·

Lone, starless cloud may be a 'dark' galaxy
科学与环境

Lone, starless cloud may be a 'dark' galaxy

Astronomers using China's FAST radio telescope have discovered a compact cloud of hydrogen with no visible stars or galaxy around it. This could be one of the strongest candidates yet for an isolated "dark galaxy," containing nearly 500,000 times the sun's mass in neutral hydroge

Phys.org - latest science and technology news stories ·

NASA’s Roman Space Telescope exceeds expectations by nearly 30%
科学与环境

NASA’s Roman Space Telescope exceeds expectations by nearly 30%

NASA’s Nancy Grace Roman Space Telescope has exceeded expectations after engineers made incredibly tiny adjustments to sharpen its view of the universe. By moving a mirror just one-sixteenth the width of a human hair, the team helped bring its powerful instruments into near-perfe

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