These three new clusters are noteworthy due to their age and deficiencies in metal-like substances.
"From space we do not see the earth with political borders," said Kelly, who holds the record for most space flights for an American astronaut.
Author-scientist team up with SpaceIL to create children's book.
The theme of this year's "Space Week" will be to commemorate 50 years since man first landed on the moon.
The events held in Israel are sponsored under a UN World Space Week Initiative, made up of around 50 countries, Israel being one of the countries taking part in the initiative.
Thursday would have been the 90th birthday of Ginz, who was killed in Auschwitz at the age of 16.
Cancellation of public events due to haredi pressure spurs NGOs into action.
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