Here are some differences. Please add to this list:
At present, there are 6 million Jews in Israel and 8 million Jews elsewhere.
The diaspora; the Exile. See more on this linked page.
All of the (approximately 7 million) Jews living outside Israel.
Diaspora communities; exiles; yordim (in recent usage). See also:More about the diaspora
If the question is asking about the Jewish Diaspora, those Jews who are in Israel are not considered to be in the Diaspora.If the question is asking about a different diaspora, such as the Armenian Diaspora, the Circassian Diaspora, etc. the leaders of those ethnic group's religious institutions have become the leaders of those diasporas in Israel.
Yes.
Diaspora.
The scattering of Jews outside of Judah was called the diaspora. Please see related links.
Diaspora is a term used to describe Jews that live outside of Israel. They are still faithful to their religion but do not reside where the majority of them live. Noun: The Dispersion of the Jews beyond Israel, or of any people from their homeland.
The Romans expelled the Jews from Israel in 70 CE.
The second Diaspora (70 CE to the present day) began when the Romans destroyed the 2nd Temple and expelled the Jews from Israel.
No, Jews do not come from Mars. Jews are a religious and ethnic group with roots in ancient Israel and diaspora communities around the world, but their origins are not extraterrestrial.