The sweepstakes is a fundraiser for the nonprofit The Planetary Society 60 South Los Robles Avenue, Pasadena, CA 91101.

The nonprofit The Planetary Society, EIN 953423566 is responsible for running this sweepstakes.

100% of every donation/entry payment is paid to the nonprofit. The nonprofit pays the credit card processing fees and the TapKat platform fee of 10% of the donation amount.

The Grand Prize is a Celestial Escape to Mauna Kea.

The rules for the sweepstakes may be viewed under the Rules section of this website.

The sweepstakes is open to anyone 18 years or older. Citizens and residents of the U.S. and any other country in which sweepstakes are legal may enter this sweepstakes. For more details on eligibility, please see the Rules. All federal, state, local laws and regulations apply.

Sweepstakes Entries may be obtained in the following manner: (1) ordering online by visiting https://www.tapkat.org/the-planetary-society/Wk1vj9 and submitting an online entry form with a donation; (2) by mailing (postage paid) your check or money order for the appropriate entry amount along with your full name, email, phone number and address (all required to enter) to: The Planetary Society, Attn: Sweeptakes Entries, 60 South Los Robles Avenue, Pasadena, CA 91101; (3) or by requesting a sweepstakes Entry without a donation by using the method outlined in the Rules.

Entrants who wish to purchase entries to enter the sweepstakes can do so by mailing (postage paid) a check or money order for the appropriate entry amount along with your full name, email, phone number and address (all required to enter) to: The Planetary Society, Attn: Sweeptakes Entries, 60 South Los Robles Avenue, Pasadena, CA 91101.

Your donation amount determines the number of entries you will receive. Entry purchase amounts are:

• (1) $25 for 18 entries

• (2) $50 for 40 entries

• (3) $100 for 90 entries

• (4) $200 for 200 entries

• (5) $350 for 400 entries

• (6) $500 for 650 entries

• (7) $1,000 for 1750 entries

• (8) $2,000 for 4000 entries

You may buy as many entries as you like, as often as you like. We appreciate your support!

The sweepstakes ends at 11:59pm PDT on May 21, 2026.

The winning entry will be drawn at Los Angeles, California at approximately 12:00pm PDT on May 29, 2026.

The nonprofit draws the sweepstakes winner utilizing a secure, industry-standard random number generator to select the winning entry from the pool of eligible entries.

No, you do not have to be present when the winning entry is drawn to win.

The sweepstakes winner will be notified on 12:00pm PDT on May 29, 2026 by phone and/or email based on the contact information provided at the time of entry purchase. We will post the winner's name and the winning entry on this website.

Following the Drawing of the Winner, the winning entry, entrant’s name, city and state is automatically published on the home page of this sweepstakes site.

The Planetary Society will contact the winner and provide all the details on pickup or delivery of the prize and appropriate paperwork.

Your entry purchase is a donation to the nonprofit The Planetary Society. Check with your accountant to determine if your donation is tax-deductible. We do not warrant that your donation is or is not tax-deductible.

Yes. The prize winner will be required to submit all applicable IRS forms in order to be awarded the prize.

The prize winner as well as The Planetary Society.

Please visit: https://PLANETARY.ORG

TapKat is an online fundraising platform for U.S. nonprofits. Nonprofits run their sweepstakes fundraisers using tools provided by the TapKat platform.

Please visit the Rules section of this website or contact The Planetary Society: richard.chute@planetary.org