NELIOTA is an activity initiated by the European Space Agency (ESA), which was recently launched at the National Observatory of Athens. The project aims to count and characterise the number and...

An international campaign has revealed that an asteroid will come within 44 000 km of our planet in October, providing a rare opportunity for intensive studies. Astronomers recently spotted...

As part of an international observing campaign, the OSIRIS-REx spacecraft has been imaged during our normal monthly observing run on 16 September with the OGS telescope in Tenerife. In the attached...

A few weeks ago the Pan-STARRS survey discovered a new NEO, temporarily identified as P10G8tt and then formally designated 2018 AM12. Follow-up observations over the next few days allowed the...

During the first month of 2018 two objects reached a Torino Scale level of 1, and attracted the attention of observers with the goal of collecting additional observations necessary to remove the...

At approximately 09:30 UT on 14 April 2018 the Catalina Sky Survey, in Arizona, discovered a bright magnitude 15 object moving at a sky speed of 10" per minute, in the constellation Libra. ...

Every few hours observing the Moon, ESA’s ‘NELIOTA’ project discovers a brilliant flash of light across its surface – the result of an object hurtling through space and striking our unprotected...

New observations of asteroid Apophis rule out any chance of impact for at least a century

ESA’s Planetary Defence Office has just released a new NEOCC web portal

Additional information

Detecting an asteroid beyond telescope normal operation

First light of ESA's Test-Bed Telescope in Chile

NEOCC observations help in nailing down the orbit of 2021 PH27

On 19 October the Pan-STARRS telescope, one of the NASA-funded surveys dedicated to discovering new NEOs, found an object that proved to be extremely unique: for the first time, an asteroid...

ESA has inaugurated the new building for the NEOCC at ESRIN

NEOCC portal provides automated access to most of its data

The importance of accurate star catalogues and image archives for Planetary Defence

NEO Chronology Last update: 2021-11-01 06:00 UTC The updating of the NEO Chronology is currently on hold. Courtesy of Karel A. van der Hucht Last version 121.0 Download:.PDF For an explanation...

Typical behaviour of a non-impacting object in the risk list

Large NEA steadily going out of the long-term risk list