The rotational-fission of a “rubble-pile” structured asteroid can result in an “asteroid pair” two un-bound asteroids sharing nearly identical heliocentric orbits. Models suggest that this mechanism exposes material from below the progenitor surface that previously had never have been exposed to the weathering conditions of space. Therefore, the surfaces of asteroid pairs offer the opportunity ...

Besides new observations, mining old photographic plates and CCD image archives represents an opportunity to recover and secure newly discovered asteroids, also to improve the orbits of Near Earth Asteroids (NEAs), Potentially Hazardous Asteroids (PHAs) and Virtual Impactors (VIs). These are the main research aims of the EURONEAR network. As stated by the IAU, the vast collection of image archi...

We conducted laboratory experiments to investigate interpopulation differences in the behavioural responses of the whelk Buccinum undatum to the predatory lobster Homarus americanus and the asteroid Leptasterias polaris, both in the absence and presence of feeding opportunities. Whelks from three populations in the eastern North Atlantic (1) responded to lobsters by displaying avoidance behavio...

There may be differences between this version and the published version. You are advised to consult the publisher's version if you wish to cite from it. Near Earth asteroids represent a wealth of material resources to support future space ventures. These resources include water from C-type asteroids for crew logistic support; liquid propellants electrolytically cracked from water to fuel crewed...

Bacterial mycetoma is a neglected disease mainly observed in tropical area countries and typically associated with rural conditions, making its presence in developed countries of temperate climate areas rare. However, we report the first case of an autochthonous mycetoma case in continental France that originated from a new Nocardia species. A Gram-positive filamentous bacterium (OFN 14.177T) w...

During 2 years, from March 1987 to April 1989, 600 samples of soil and plant were collected from different cities of northern provinces of Iran. Out of the six hundred samples 58 Actinomycetes, 9 Pseudallescheria boydii, 10 Sporothrix schenckii, and 4 Sporothrix schenckii-like fungi were isolated as the following: Streptomyces griseus from 31 samples (38.27%), Nocardia asteroides from 8 sa...

Nocardia are gram-positive and partially acid-fast bacteria with saprophytic lives in the environment. These groups of bacteria are able to enter the human body through traumatic inhalation and may consequently cause Nocardiosis infections. Case Presentation: A 32-year-old man was referred to Al-Zahra Hospital with symptoms such as fever, gradual weight loss, and persistent coughing. First, th...

Insights into the history of the inner solar system can be derived from the impact cratering record of the Moon, Mars, Venus, and Mercury and from the size distributions of asteroid populations. Old craters from a unique period of heavy bombardment that ended approximately 3.8 billion years ago were made by asteroids that were dynamically ejected from the main asteroid belt, possibly due to the...