Discover and read the best of Twitter Threads about #Didymos

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Warning: emotional #thread about #DARTMission.
It was 9 years ago when I started to work on @esa's Asteroid Impact Mission. This was the first time I met #Didymos. Since then, Didymos and its small moon #Dimorphos (back then it was Didymoon) became a huge part of my career.
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Many things happened in my life during these 9 years. Didymos always followed me all around the globe.
I worked on engineering aspects of missions to Didymos (AIM and Hera/Milani), as well as on scientific ones, as a member of the DART&Hera Investigation Team.
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I was mission analyst for AIM at @polimi (designing AIM's interplanetary transfer and MASCOT-2 landing on Dimorphos), then PI of projects to study rubble-pile dynamics of Didymos at @NASAJPL and @unibern, and back to trajectory design for Hera/Milani cubesat at @polimi
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Read 6 tweets
Un asteroide sta per colpire la Terra e bisogna organizzare una missione spaziale di emergenza che eviti la catastrofe. È lo scenario di diversi film di fantascienza, di solito più attenti agli effetti speciali che al rigore scientifico. Ma è anche una preoccupazione reale? /1
Ogni settimana vengono scoperti circa 30 nuovi asteroidi con un’orbita vicina a quella terrestre. La probabilità che uno di questi metta a rischio la vita sulla Terra è bassissima nel breve termine, ma aumenta man mano che ci spostiamo nel futuro. /2
Nel 2018 il fisico Stephen #Hawking nel suo ultimo libro, Le mie risposte alle grandi domande, l'ha definito la minaccia più grave per la Terra. Un asteroide di un kilometro provocherebbe terremoti, tsunami e sconvolgimenti climatici e metterebbe a rischio la nostra civiltà. /3
Read 11 tweets
Heute hat die ESA einen Auftrag für die detaillierte Konzeption, den Bau und die Tests von #Hera, der ersten ESA-Mission zur planetaren Verteidigung, vergeben 👇

esa.int/Space_in_Membe…

#SpaceSafety
#Hera wird zusammen mit der @NASA-Raumsonde Double Asteroid Redirect Test (#DART) die erste Sonde sein, die ein Rendezvous mit einem binären Asteroiden-System vollzieht - einer wenig erforschten Klasse, die etwa 15% aller bekannten Asteroiden ausmacht.
Die #DART-Raumsonde wird zunächst einen Aufprall auf den kleineren der beiden Körper durchführen. #Hera wird im Anschluss an den Aufprall eine detaillierte Untersuchung durchführen, um aus diesem Experiment eine wiederholbare Technik zur Ablenkung von Asteroiden zu machen.
Read 4 tweets

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