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On 25 July, an asteroid the size of a football field flew by Earth, coming within 65 000 km of our planet’s surface during its closest approach – about one fifth of the distance to the Moon.
ESA’s Planetary Defence Office (PDO) has participated with several presentations at the 6th IAA Planetary Defense Conference held in College Park, near Washington, between 29 April and 3 May.
The number of known near-Earth asteroids (NEAs) reached the round total of 20 000 this week. This family of asteroids whose orbit brings them close to Earth is steadily growing at a pace of roughly...
Spotting Earth-threatening asteroids is tough partly because the sky is so big. But insects offer an answer, since they figured out long ago how to look in many directions at once.
The word "precovery" has entered the astronomical jargon rather recently but it quickly grew in popularity among asteroid hunters. It refers to the finding of an archival observation of an object...