The modern world is subject to many natural, man-made and social dangers. Many of them are global in nature, as they threaten the very existence of human civilization. Notable among them is the danger of Earth collision with space bodies of cometary and asteroid nature. At present, there is no doubt about the importance and urgency of this problem. In particular, this is evidenced by a report of the National Science and Technology Council, USA, where the importance to detect and characterize the Near-Earth Objects (NOE) population and to prevent and respond to NEO impacts on Earth is outlined. To protect our planet from the dangers of collision with small bodies, it is first of all necessary to understand from which specific of almost 1 million bodies the Earth needs to be protected. The NEOForCE project aims to build a system to search for possible threats to the Earth from celestial bodies which is independent from the ones that are being operated at NASA and ESA, hence acting as an additional validation for risk assessment. NEOForCE has several objectives:
1) develop new methods for estimating of the impact probability of a small body with the Earth;
2) develop methods for obtaining more reliable estimates of orbital parameters and their uncertainties;
3) make a search for old observations of known objects.
Besides, several web-services at the LTE/Paris observatory have been developped with the aim to list:
1) potentially colliding with the Earth asteroids and comets with their impact probability values;
2) possible close encounters of asteroids and comets with the Earth;
3) old observations made on photographic plates many years, deacades, even centuries ago, with the identifications to the objects imaged on them.
