EarthCARE offers a sneak peek into Earth's energy balance

Offering a foretaste of what's to come once it is fully commissioned, ESA's EarthCARE satellite has returned the first images from its broadband radiometer instrument. These initial images offer a tantalizing glimpse into ...

Determining the safest Mars caves for future astronauts

When astronauts land on Mars someday, they might have to live in lava caves or lava tubes to survive the harsh radiation that rains down on the Martian surface every second. But which caves could offer them the best chance ...

Studying the mystery of Uranus's curiously weak radiation belts

When the Voyager 2 spacecraft visited Uranus almost 50 years ago, it discovered a magnetic mystery. Unlike on most planets, the ice giant's magnetic field is tilted roughly 60° away from its spin axis, creating an asymmetric ...

The Milky Way's eROSITA bubbles are large and distant

In 2020, astronomers discovered a large hourglass-shaped structure in or near the center of our Milky Way galaxy. Dubbed "eROSITA bubbles," there have been a few different hypotheses proposed to explain their precise nature. ...

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