Riskiest asteroid in the last months removed from the risk list

June 2022 Newsletter

May 2022 Newsletter

April 2022 Newsletter

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

Summary 2022 EB5 was the fifth object to be detected before impacting the Earth. The meteoroid was discovered at Konkoly Observatory (Hungary) on 11 March 2022 and impacted the atmosphere over the...

Summary 2019 MO was the fourth object to be detected before impacting the Earth. The meteoroid was discovered by ATLAS in Mauna Loa on 22 June 2019 and impacted the atmosphere over the Caribbean...

Summary 2018 LA was the third object to be detected before impacting the Earth. The meteoroid was discovered at 08:22 UTC on 2 June 2018 by the Mount Lemmon Survey and impacted the atmosphere over...

Summary 2014 AA was the second object to be detected before impacting the Earth. The meteoroid was discovered on 1 January 2014 by the Mount Lemmon Survey and impacted the atmosphere over the...

Summary 2008 TC3 was the first object detected in space prior to impacting the Earth. Discovery occurred at 06:39 UTC on 7 October 2008 by the Catalina Sky Survey and the meteoroid entered the...

The Planetary Defence community has detected the fifth asteroid impactor

March 2022 Newsletter

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

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

February 2022 Newsletter

Asteroid 7482 1994PC1

January 2022 Newsletter

December 2021 Newsletter

NEOCC portal provides automated access to most of its data

Near-Earth Object Population Observation Program (NEOPOP) During activities related to ESA's Space-Situational Awareness (SSA) programme, the need for an observation system simulation software tool...

Asteroid 2019 XS

November 2021 Newsletter

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...

ESA has inaugurated the new building for the NEOCC at ESRIN

October 2021 Newsletter

September 2021 Newsletter

NEOCC observations help in nailing down the orbit of 2021 PH27

August 2021 Newsletter

July 2021 Newsletter

June 2021 Newsletter

May 2021 Newsletter

Planetary Defence involves a collaborative effort among various organizations, including the European Space Agency (ESA), NASA, the Jet Propulsion Laboratory (JPL), and the Center for Near Earth...

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

Detecting an asteroid beyond telescope normal operation

April 2021 Newsletter

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

March 2021 Newsletter

February 2021 Newsletter

A revision of the Apophis impact hazard assessment

January 2021 Newsletter

Last update: 2020-12-04 10:00 UTC On this page, the NEOCC provides problems (we call them 'riddles') related to the observation of NEOs, their dynamics and their characterisation. In irregular...