How plants sense gravity: A new look at the roles of genetics and the cytoskeleton
Gravity affects the ecology and evolution of every living organism. In plants, the general response to gravity is well known: their roots respond positively, growing down, into the soil, and their stems respond ...
New method of measuring the mass of supermassive black holes
(Phys.org)—A new way of measuring the mass of supermassive black holes could revolutionise our understanding of how they form and help to shape galaxies.
Engineers building hard-working mining robot
(Phys.org)—After decades of designing and operating robots full of scientific gear to study other worlds, NASA is working on a prototype that leaves the delicate instruments at home in exchange for a sturdy ...
US military looks for new life for dead satellites
It's like doing robotic surgery in zero gravity: Imagine scavenging defunct communication satellites for their valuable parts and recycling them to build new ones for cheap.
Nanotech research yields bouncing liquid metal marbles (w/ video)
Coating liquid metal droplets in a nanoparticle mix creates an extra strong non-stick conductive material that retains its shape even under high impact, Australian research has found.
Masers in stellar nurseries
(Phys.org)—Astronomers have come to realize that the process of star formation, once thought to consist essentially of just the simple coalescence of material by gravity, occurs in a complex series of stages. ...
Twin NASA spacecraft deliberately crash into moon
A pair of NASA spacecraft tumbled out of orbit around the moon and crashed back-to-back into the surface on Monday, ending a mission that peered into the lunar interior.
Twin NASA spacecraft prepare to crash into moon
(Phys.org)—Twin lunar-orbiting NASA spacecraft that have allowed scientists to learn more about the internal structure and composition of the moon are being prepared for their controlled descent and impact ...
Duo create GravityLight: Lamp that runs off of gravity (w/ video)
What happens to plant growth when you remove gravity?
It is well known that plant growth patterns are influenced by a variety of stimuli, gravity being one amongst many. On Earth plant roots exhibit characteristic behaviours called 'waving' and 'skewing', which ...
Titan, Saturn's largest moon, icier than thought, scientists say
(Phys.org)—A new analysis of topographic and gravity data from Titan, the largest of Saturn's moons, indicates that Titan's icy outer crust is twice as thick as has generally been thought.
Invisibility cloaking to shield floating objects from waves
A new approach to invisibility cloaking may one day be used at sea to shield floating objects – such as oil rigs and ships – from rough waves. Unlike most other cloaking techniques that rely on transformation optics, ...
Hypergravity helping aircraft fly further
(Phys.org)—ESA research has helped to develop an aircraft-grade alloy that is twice as light as conventional nickel superalloys while offering equally good properties. The path to creating this alloy required ...
Why astronauts experience low blood pressure after returning to Earth from space
When astronauts return to Earth, their altitude isn't the only thing that drops—their blood pressure does too. This condition, known as orthostatic hypotension, occurs in up to half of those astronauts on short-term missions ...