Related topics: cassini spacecraft

Rocky planets might need to be the right age to support life

Extrasolar planets are being discovered at a rapid rate—4,531 planets in 3,363 systems (with another 7,798 candidates awaiting confirmation). Of these, 166 have been identified as rocky planets (also known as "Earth-like"), ...

Copying the small structures of Salvinia leaves

Several plants and animals have evolved surfaces with long-term (i.e., days to months) air-retainability to prevent wetting and submersion. One example is Salvinia, a plant floating on water. The secret "how do they maintain ...

Evapotranspiration: Watching over water use

As soil and other surfaces dry, water is transferred into the air as water vapor. That is evaporation. Plants actively release water, moving it out of their leaves and stems and into the drier air. That is transpiration.

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