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Source: http://www.newtonsapple.org.uk/the-sun-and-nuclear-fusion/

Not indicating that the content you copy/paste including images is not your original work could be seen as plagiarism.
Here is a post on why this is bad, and here is how easy it is to find allowed photos.

#photography

Please refrain from using #photography for posting art, posting graphics, posting other people's photos without proper attribution or explicitly stating it's not yours.

Repeated use of the #photography tag when posting other people's photos without attribution or indicating it isn't yours could be considered spam. Spam is discouraged by the community and may result in action from the cheetah bot.

If you are the photographer please reply and let us know!

Thank You!

TIP: You can edit any tag but the first!

More Info: Abuse Guide - 2017.

I always upvote and comment. Now same to you.

gd work upvote me

good work upvote me

What a great click

IT LOOKS PHOTOSHOP
BUT AT THE SAME TIME ITS

AMAZING!!!

Here's some of my own photography
DSC07375.JPG

I HAVE POST IN MY ACCOUNT JUST CHECK IT OUT

nice good job

This picture is very mysterious and great. Original is always lots of way better than copy :) I follow you
your post resteemed!