Anisotropic Turbulence in the Earth's Magnetosheath
Our research

Turbulence is a complex phenomenon with driving mechanisms still not clearly understood in contemporary science. Turbulence naturally appears in astrophysical plasmas, including the solar wind at planetary and interstellar shocks. The shocks in astrophysical plasmas are usually collisionless due to a very low density of the medium and therefore they differ from those observed in ordinary fluids, because they often result from interaction of nonlinear structures.

Last Updated on Wednesday, 14 February 2018 13:01
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SPIE Remote Sensing symposium in Warsaw
News

We cordially invite you to participate in the 2017 SPIE Remote Sensing symposium.  Over the past 23 years SPIE Remote Sensing has become the largest and most prestigious annual international meeting on this subject in Europe.

Last Updated on Tuesday, 31 January 2017 14:53
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The cycle of solar activity responsible for modulation of interstellar neutral gas density and pick-up ions along the Earth’s orbit
Our research

The interstellar gas in the Local Interstellar Cloud (LIC) surrounding the Sun is composed mainly of hydrogen and helium. But it contains also other chemical elements, among which the most abundant are oxygen and neon. The neutral atoms from the LIC flow into the heliosphere, where some of them are ionized and carried away with the solar wind as pick-up ions (PUIs), but some of them reach the Earth's orbit and distances even closer to the Sun. Underway, they are focused by solar gravity and form a characteristic, elongated patterns in density, with a cone of enhanced concentration at the downwind side of the Sun.

Last Updated on Wednesday, 20 April 2016 09:59
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The new concept of sampling device driven by rotary hammering actions
Our research

Sample return space missions are one of the possible options to extend our knowledge about extra-terrestrial materials, processes occurring on surface and subsurface level, as well as interactions between regolith and technology. Collection of surface or subsurface material from such bodies is a key technical process that needs to be performed to achieve the goals of such missions. Although in terrestrial environment the sampling process is relatively easy, smart solutions are needed for zero gravity, unknown and remotely accessible space environment.

Last Updated on Tuesday, 13 September 2016 13:16
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The enigma on the nearest galactic neighborhood of the Sun resolved
Our research

The November issue of the prestigious science journal Astrophysical Journal Supplement Series presents results of investigations of interstellar matter in the immediate galactic neighborhood of the Sun, carried out by the Interstellar Boundary Explorer (IBEX) space probe. An important contribution to the findings presented in a series of 14 papers published in a special topical issue of ApJS was brought by a team of scientists from the Laboratory for Solar System Physics and Astrophysics of the Space Research Centre of the Polish Academy of Sciences (Centrum Badań Kosmicznych PAN, CBK PAN), led by Dr. Maciej Bzowski.

Last Updated on Wednesday, 21 October 2015 10:41
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Our research

our research

The smallest dust grains in the circumsolar dust cloud are the nanodust particles, i.e., the dust grains with the sizes of a few to a few tens millionth parts of millimeter. They are so small they include just several dozen thousands of atoms.

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Interplanetary space is filled with magnetized plasma from the Sun (the solar wind) and interstellar gas, mainly hydrogen and helium, which continuously flows through the heliosphere. The interstellar atoms are ionized by extreme ultraviolet radiation and the solar wind. In result of ionization of the interstellar atoms, new ions in the solar wind are created.

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The heliosphere is a region in the interstellar space filled with the solar wind plasma, emitted by the Sun. Since the Sun is traversing a partly ionized, magnetized cloud of interstellar gas, the solar wind expansion must be eventually arrested at a certain distance to the Sun. This happens in the locations where the solar wind pressure becomes equal to the pressure of the interstellar matter. Ultimately, however, the solar wind matter cannot accumulate infinitely inside the heliosphere and must find an exit path to the interstellar space. But where exactly is this path located? And is there just one evacuation path or more? These questions cannot be answered directly because up to now there have been just two active space probes – Voyager 1 and 2 – to reach the boundary regions of the heliosphere, and this happened in the regions least suspect of being anywhere close to the solar wind evacuation path. Therefore, answering these question can only be done by remote-sensing measurements and theoretical modeling.

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CBK PAN will participate in a NASA space mission Interstellar Mapping and Acceleration Probe (IMAP), scheduled for launch in 2024. The selection of the winning proposal submitted in response to the Announcement of Opportunity released in 2017, was announced in Washington DC on June 1, 2018 (https://www.nasa.gov/press-release/nasa-selects-mission-to-study-solar-wind-boundary-of-outer-solar-system).

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