The atmosphere of Neptune is similar to that of Uranus. It is about 80% hydrogen, 19% helium, and 1.5% methane. However the weather activity on Neptune is much more active, and its atmosphere is much bluer than that of Uranus.
If your goal is a legitimate tax deduction, then you must be giving to a qualified organization. Also, you cannot deduct contributions made to specific individuals, political organizations and candidates. See IRS Publication 526, Charitable Contributions, for rules on what constitutes a qualified organization.
Unused RRSP contributions. You don't have to deduct an RRSP contribution on your tax return in the same year you make the contribution. You can wait and deduct it in a future year. You may choose to do this if you think your income will be higher in the future, moving you up to a higher tax bracket.