Developing a Freshwater Health Index

NASA Earth science satellites and other remote sensing techniques can fill in information gaps, but scientific data is just one piece of the larger puzzle when it comes to sustainable water resource management.

Curiosity rover begins next Mars chapter

After collecting drilled rock powder in arguably the most scenic landscape yet visited by a Mars rover, NASA's Curiosity mobile laboratory is driving toward uphill destinations as part of its two-year mission extension that ...

NASA's Voyager 1 resumes sending engineering updates to Earth

For the first time since November, NASA's Voyager 1 spacecraft is returning usable data about the health and status of its onboard engineering systems. The next step is to enable the spacecraft to begin returning science ...

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 ...

NASA's Chandra identifies an underachieving black hole

Astronomers have revealed that a brilliant supermassive black hole is not living up to expectations. Although it is responsible for high levels of radiation and powerful jets, this giant black hole is not as influential as ...

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