NEO Information Centres

NEODyS - The Near-Earth Object Dynamic Site
https://newton.spacedys.com/neodys/

AstDyS - The Asteroids Dynamic Site
https://newton.spacedys.com/astdys/

The Minor Planet Center
http://www.minorplanetcenter.org/iau/mpc.html

The NASA Center for Near Earth Object Studies
http://cneos.jpl.nasa.gov/

JPL Solar System Dynamics
http://ssd.jpl.nasa.gov/

NEO Observing Programmes

The Spacewatch project
http://www.lpl.arizona.edu/spacewatch/

The Catalina Sky Survey
http://www.lpl.arizona.edu/css/

Pan-STARRS
https://neo.ifa.hawaii.edu/

Vera C. Rubin Telescope
https://www.lsst.org/

Observatorio Astronómico de La Sagra
http://www.minorplanets.org/OLS/

The NEOWISE project
http://neowise.ipac.caltech.edu/

The Asteroid Terrestrial-impact Last Alert System (ATLAS)
https://atlas.fallingstar.com/

NEO Physical Properties Databases

SINEO: Spectroscopic Investigation of Near-Earth Objects
http://www.astro.unipd.it/planets/sineo.html

Behrend catalogue of asteroid lightcurves
http://obswww.unige.ch/~behrend/page_cou.html

M4AST - Modelling for Asteroids
http://m4ast.imcce.fr/

MP3C - Minor Planet Physical Properties Catalogue
http://mp3c.oca.eu/

Scientific Organisations

Europlanet: a European Research Infrastructure on Planetary Science
http://www.europlanet-eu.org/outreach/

The Planetary Society in UK
http://www.planetary.org.uk/

The Planetary Society headquarters in USA
http://planetary.org/

The B612 Foundation
http://b612foundation.org/

International Asteroid Warning Network
http://www.minorplanetcenter.net/IAWN/

Space Missions

ESA NEO Space Mission Studies
https://www.esa.int/Safety_Security/Hera/NEO_precursor_studies

ESA's Marco Polo NEA sample return mission
https://www.oca.eu/MarcoPolo-R/

ESA's Hera mission study
http://www.esa.int/Our_Activities/Space_Safety/Hera

NASA's Double Asteroid Redirection Test mission (DART)
https://www.nasa.gov/planetarydefense/dart

JAXA's Hayabusa NEA sample return mission
https://www.isas.jaxa.jp/en/missions/spacecraft/past/hayabusa.html

JAXA's Hayabusa2 NEA sample return mission
http://www.hayabusa2.jaxa.jp/en/

NASA's OSIRIS-Rex NEA sample return mission
http://science.nasa.gov/missions/osiris-rex/

NASA's NEAR mission to asteroid Eros
http://near.jhuapl.edu/

NASA's WISE mission
http://wise.ssl.berkeley.edu/index.html

NASA’s Lucy mission to the Trojan asteroids
https://www.nasa.gov/content/goddard/lucy-overview

NASA’s Psyche mission to a metallic asteroid
https://www.nasa.gov/mission_pages/psyche/overview/index.html

NASA’s NEOCAM mission
https://neocam.ipac.caltech.edu/

SMPAG - Space Missions Planning Advisory Group
https://www.cosmos.esa.int/web/smpag/

Search for Comets

Near-Earth comets orbital elements
https://ssd.jpl.nasa.gov/tools/sbdb_query.html

Minor Planet Centre ephemerides of observable comets
http://minorplanetcenter.org/iau/Ephemerides/Comets/

Gary Kronk's Cometography
http://cometography.com/

Search for Fireballs

IAU Meteor Data Center
https://www.iaumeteordatacenter.org

ESA Research and Science Support Department Meteor Research Group
https://www.cosmos.esa.int/web/meteor

International Meteor Organization: Fireball observations
http://www.imo.net/fireball

NASA's All Sky Fireball Network
http://fireballs.ndc.nasa.gov/

Other Interesting Sites

Earth's busy neighbourhood
http://www.hohmanntransfer.com/

Tunguska home page, by the University of Bologna
http://www-th.bo.infn.it/tunguska

Planetary Resources: the asteroid mining company
https://www.consensys.space/

Planetary and Space Science Earth Impact Database
http://passc.net/EarthImpactDatabase/New%20website_05-2018/Index.html