Mars tugging on approaching Curiosity rover

(Phys.org) -- The gravitational tug of Mars is now pulling NASA's car-size geochemistry laboratory, Curiosity, in for a suspenseful landing in less than 40 hours.

Using sap flow to infer plant hydraulic properties

A foundational element of plant metabolism is the transport of water from the ground to the leaves. In most plants, this task is facilitated by xylem, a tissue whose structure provides hydraulic pathways that aid the water's ...

Image: A rare optical phenomenon spotted from orbit

Despite humankind's scientific prowess there are still many phenomena that defy explanation or a common agreement on why something happens. A 'glory' is a rare optical phenomenon that is mostly seen by pilots and mountain ...

Researchers get new view of how water and sulfur dioxide mix

High in the sky, water in clouds can act as a temptress to lure airborne pollutants such as sulfur dioxide into reactive aqueous particulates. Although this behavior is not incorporated into today's climate-modeling scenarios, ...

Researchers find storm periodicity in southern oceans

(Phys.org) —A pair of researchers with the Department of Atmospheric Science at Colorado State University has found that storms in the Southern Hemisphere tend to occur on a 20 to 30 day periodic basis. In their paper published ...

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