How far up into the sky does the biosphere extend? Do microorganisms exist at heights of 40 km and in what quantity? To answer these questions several research institutes in India collaborated on a path-breaking project to send balloon-borne sterile "cryosamplers" into the stratosphere. The programme was led by cosmologist Professor Jayant Narlikar, Director of the Inter University Centre for Astronomy and Astrophysics in Pune, with scientists at the Indian Space Research Organisation and the Tata Institute of Fundamental Studies contributing their various expertise.
Large volumes of air from the stratosphere at heights ranging from 20 to 41km were collected on 21 January 2001. The programme of analysis of samples in the UK was organised by Professor Chandra Wickramasinghe of Cardiff University, co-proponent with the late Sir Fred Hoyle of the modern theory of panspermia. This theory states that the Earth was seeded in the past, and is still being seeded, with microorganisms from comets.
Last year a team of biologists at Cardiff Universitys School of Biosciences reported evidence of viable bacteria in air samples at 41km in such quantity that implied a world-wide settling rate of one tonne of bacterial material per day. Although living bacteria were seen they could not be grown in the laboratory. Dr Milton Wainwright of Sheffield Universitys Department of Molecular Biology and Biotechnology, was asked to apply his skills to growing the organisms. Dr Wainwright isolated a fungus and two bacteria from one of the space derived samples collected at 41km. The presence of bacteria in these samples was then independently confirmed. These results are published in this months issue of a prestigious microbiology journal FEMS Letters (Wainwright et al, 2002), published by Elsevier. The isolated organisms are very similar to known terrestrial varieties. There are however notable differences in their detailed properties, possibly pointing to a different origin. Furthermore, it should be stressed that these microorganisms are not common laboratory contaminants.
Chandra Wickramasinghe | EurekAlert!
Fine organic particles in the atmosphere are more often solid glass beads than liquid oil droplets
21.04.2017 | Max-Planck-Institut für Chemie
Study overturns seminal research about the developing nervous system
21.04.2017 | University of California - Los Angeles Health Sciences
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...
Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.
A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
21.04.2017 | Physics and Astronomy
21.04.2017 | Health and Medicine
21.04.2017 | Physics and Astronomy