Salt deposits on Mars hold clues to sources of ancient water

For centuries, miners have burrowed into the earth in search of salt—laid down in thick layers from ancient oceans long since evaporated. When scientists saw huge deposits of salt on Mars, they immediately wondered whether ...

Steam balloon to facilitate satellite launches

Steam balloons could be used to lift space rockets to higher altitude for launch. Launching from high altitude reduces air drag and thus improves efficiency. The researchers present the method in an article published in The ...

Spaceflight consistently affects the gut

A new Northwestern University study discovered that spaceflight—both aboard a space shuttle or the International Space Station (ISS)—has a consistent effect on the gut microbiome

Large cosmological simulation to run on Mira

An extremely large cosmological simulation—among the five most extensive ever conducted—is set to run on Mira this fall and exemplifies the scope of problems addressed on the leadership-class supercomputer at the U.S. ...

Deployment test of Webb's secondary mirror

The secondary mirror—visible in the top right corner of the image—is among the most important pieces of equipment on the NASA/ESA/CSA James Webb Space Telescope (JWST) and is essential to the success of the mission.

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