As well as keeping their fingers crossed for good weather during next weeks close approach of Mars, astronomers are hoping that the skies will be clear on Mars itself.
During National Astronomy Week - Saturday 23 to Saturday 30 August - observing events will be held across the UK where the public can view Mars through telescopes. It is expected that thousands of people will turn out to see the planet closer than it has been for almost 60,000 years. But its not just our own familiar clouds that could spoil the view. There is a risk that a major dust storm on Mars could wipe out any of the surface details visible on the planet.
Marss orbit round the Sun is not circular, and its distance from the Sun varies by over 20 per cent. So when it is close to the Sun, as it is now, the additional solar heating can whip up dust storms that can cover huge areas. The most severe can cover the entire planet. This happened in 1971, for instance, just as the US Mariner 9 space probe arrived at the planet. Its cameras revealed a barren disc, with no detail at all. Marss atmosphere was filled with fine dust from pole to pole. Observers on Earth confirmed that no details could be seen for a whole month.
Pulses of electrons manipulate nanomagnets and store information
21.07.2017 | American Institute of Physics
Vortex photons from electrons in circular motion
21.07.2017 | National Institutes of Natural Sciences
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
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21.07.2017 | Physics and Astronomy