A black hole is an object predicted by general relativity,with a gravitational field so powerful that even electromagnetic radiation (including light itself) cannot escape its pull.
Fig:- It is an artists imagination of black hole.
for more scientific details i will suggest u to read "A...
why don't u try to make ur own gif( then u will beable to make in any size u want)
just google about freeware gif builder.
i will see to this matter again and then will tell u about agood software in this regard.
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