NASA's OCO-3 measures how plants grow—and glow

When plants take in too much energy, they don't get fat—they lighten up. They absorb more sunlight than they need to power photosynthesis, and they get rid of the excess solar energy by emitting it as a very faint glow. ...

BepiColombo is ready for its long cruise

Following a series of tests conducted in space over the past five months, the ESA-JAXA BepiColombo mission has successfully completed its near-Earth commissioning phase and is now ready for the operations that will take place ...

Image: Connecting to Solar Orbiter

In this image, ESA's new Solar Orbiter spacecraft is seen during preparations for a vibration test campaign at the IABG facility in Ottobrunn, Germany, in March 2019.

Video: Solar Orbiter during thermal-vacuum tests

An infrared view of our Solar Orbiter spacecraft, which is currently undergoing a series of tests at the IABG facility in Ottobrunn, Germany, ahead of its launch, scheduled for February 2020.

LRO sheds light on lunar water movement

Scientists, using an instrument aboard NASA's Lunar Reconnaissance Orbiter (LRO), have observed water molecules moving around the dayside of the Moon.

Solar Dynamics Observatory catches lunar freeze frame

On the evening of March 6, 2019, the Moon started to transit the Sun, then doubled back and retraced its steps in the other direction—at least, that's what it looked like from the perspective of NASA's Solar Dynamics Observatory, ...

Video: Big questions about small worlds

Scientists who study the solar system tend to ask big questions: How was our solar system formed? Where did the building blocks of life come from? What hazards from above threaten life on our planet? To find answers, they're ...

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