In orbit for three and a half years now, ESAs smallest Earth Observation satellite is making a big contribution to science, a workshop heard this week. Proba applications range from studying land vegetation to water quality monitoring, assessing productivity of Italian vineyards, even helping hunt for meteorite impact craters.
ESAs Proba microsatellite is about the same size and shape as a washing machine. It was launched on 22 October 2001 as a one-year technology demonstrator, but continuing high in-orbit performance has led to it being adopted as an Earth Observation Third Party Mission. Probas largest instrument is the Compact High Resolution Imaging Spectrometer (CHRIS), a hyperspectral imager that can view the Earths surface to a spatial resolution of 18 metres in a combination of up to 19 out of 62 programmable spectral bands to return highly detailed environmental information.
Some 56 scientific teams worldwide are either currently using or planning to use CHRIS data. This week saw the Third Proba/CHRIS Workshop take place at ESRIN in Frascati, ESAs establishment in Italy. Starting on 21 March, the three-day event was an opportunity for researchers to share current results and future plans, and have an input into future CHRIS acquisition planning. "What this workshop makes clear is that CHRIS/Proba is no longer a technology demonstrator but has become a real tool for actual research and applications," stated Professor Jose Moreno of the University of Valencia.
Mariangela D’Acunto | alfa
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Attoseconds break into atomic interior
23.02.2018 | Max-Planck-Institut für Quantenoptik
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
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23.02.2018 | Physics and Astronomy