Sudan, the only male white northern rhino left on the planet died on Monday due to age-related illness and making the psecies face certain extinction soon.
US researchers from Emory University and the Georgia Institute of Technology found that an infectious passenger with influenza will most likely transmit infection to passengers in vicinity but not faraway.
Greece does not intend to start its own space exploration programme, but to fill in a gap and try to make the most of its participation in the European Space Agency.
Researchers say that a man's semen count is a marker of his general health and fertility evaluation gives them the unique opportunity for health assessment and disease prevention.
The instrument, Total and Spectral solar Irradiance Sensor (TSIS-1), became fully operational with all instruments collecting science data as of this March.