Uranus was discovered in 1781 by astronomer William Herchel. It was the first planet found with the help of a telescope. Herchel accidentally saw it while he was surveying stars.
Annotations. This is a trustworthy site because it is made by national geographic which is a popular site which gives it authority. It also has good objectivity because it does not state opinions and it is just to help you learn. It is also current so you are up to date on the facts.
This site is trustworthy because it is made by nasa which is a good site and has much authority. The domain is .gov which means the government has approved it so it is accurate because they would not put false facts in. It has good objectivity because it is a popular site that just wants to inform.
This Website has good authority because the author is popular and has information about him. It is current because it was made about one year ago so it is not very old. It has facts not opinions so it has good objectivity.