Winter images of NASA's Phoenix Lander showing the lander shrouded in dry-ice frost on Mars have been captured with the High Resolution Imaging Science Experiment, or HiRISE camera, aboard NASA's Mars Reconnaissance Orbiter.

Is there such a thing as "weather" on Mars? There are some doubts, considering the planet's atmosphere is only 1 percent as dense as that of the Earth. Mars, however, definitely has clouds, drastically low temperatures and out-of-this-world dust storms,

Until Oct. 24, NASA's Mars Exploration Rover had gone more than six months without an episode of amnesia-like symptoms like those that appeared on four occasions earlier this year.

A selected overview of stellar effects and reaction mechanisms with relevanceto the prediction of astrophysical reaction rates far off stability isprovided.

For a next-nearest neighbour pair interaction model in a periodic domain, apriori and a posteriori analyses of the quasinonlocal quasicontinuum method(QNL-QC) are presented. The results are valid for large deformations andessentially guarantee a one-to-one correspondence between atomistic solutionsand QNL-QC solutions.

We exhibit stable finite time blow up regimes for the energy criticalco-rotational Wave Map with the S^2 target in all homotopy classes and for thecritical equivariant SO(4) Yang-Mills problem. We derive sharp asymptotics onthe dynamics at the blow up time

The composition factors and their multiplicities are determined forgeneralised Verma modules over the orthosymplectic Lie superalgebra osp(k|2).The results enable us to obtain explicit formulae for the formal characters anddimensions of the finite-dimensional irreducible modules. Applying theseresults, we also compute the

The aim of this article is the formulation of the basic laws of Physics byframes, i.e. quadruples of exterior differential one forms. The basic operatoris a modification of the Hodge-de Rham Laplacian d*d*+*d*d, where * is thehyperbolic star. In this

We prove the limiting absorption principle for a dressed electron at a fixedtotal momentum in the standard model of non-relativistic quantumelectrodynamics. Our proof is based on an application of the smoothFeshbach-Schur map in conjunction with Mourre's theory.

By elementary methods, I study the Love numbers of a homogeneous,incompressible, self-gravitating sphere characterized by a generalized Maxwellrheology, whose mechanical analogue is represented by a finite or infinitesystem of classical Maxwell elements disposed in parallel. Analytical,previously unknown forms of the

This article introduces a new signal analysis method. The main idea consistsin interpreting a pulse-shaped signal, after multiplying it by a positiveparameter, as a potential of a Schr\"odinger operator and representing thissignal with the discrete spectrum of this operator. We

We study the probability that the origin is connected to the sphere of radiusr (an arm event) in critical percolation in high dimensions, namely when thedimension d is large enough or when d>6 and the lattice is sufficiently spreadout. We

We argue that it is fundamentally impossible to recover information aboutquantum superpositions when a system has interacted with a sufficiently largenumber of degrees of freedom of the environment. This is due to the fact thatgravity imposes fundamental limitations on how

In this paper we build a link between the Teichmuller theory of hyperbolicRiemann surfaces and isomonodromic deformations of linear systems whosemonodromy group is the Fuchsian group associated to the given hyperbolicRiemann surface by the Poincare' uniformization. In the case of

We consider the theory of Lax equations in complex simple and reductiveclassical Lie algebras with the spectral parameter on a Riemann surface offinite genus. Our approach is based on the new objects -- the Lax operatoralgebras, and develops the approach

We present a self-contained introduction to the classical theory of spacetimeand fields. The order of the presentation is: 1. Spacetime (tensors, affineconnection, curvature, metric, tetrad and spin connection, Lorentz group,spinors), 2. Fields (principle of least action, action for gravitational field,matter,

maunder: to talk or wander aimlessly.

Today's visit by President Obama to Wright Middle School in Madison swamped our Library with calls about previous visits by incumbent chief executives. The first of those occurred on Sept. 10, 1878, when Rutherford B. Hayes spent the day in

1509 - 1588) belongs to a group of independent philosophers of the late Renaissance who left the universities in order to develop philosophical and scientific ideas beyond the restrictions of the Aristotelian-scholastic tradition. Authors in the early modern period referred

Revised entry by Robert DiSalle on November 4, 2009. Changes to: Main text, Bibliography] A "frame of reference" is a standard relative to which motion and rest may be measured; any set of points or objects that are at rest