Return & Exchange Information

Returns and Exchanges

At the Lamont-Doherty Earth Observatory shop, we have a 30 day exchange policy. If 30 days have gone by since your purchase, unfortunately we cannot offer you an exchange. To be eligible for an exchange, your item must be unused and in the same condition it was received. We require your order number or packing slip as proof of purchase to complete all exchanges. Your order number can be found in your order confirmation email.

To initiate an exchange please contact

Please send all items for exchanges to:

Lamont-Doherty Earth Observatory

c/o Grossman Marketing Group

30 Cobble Hill Road

Somerville, MA 02143

Shipping costs are non-refundable. Please note that we are not responsible for any returned item(s) lost or stolen while in transit to us. We suggest all returned item(s) be sent by a method that includes tracking. If you are shipping items valued over $75, please consider purchasing shipping insurance.

Refunds (if applicable)

No refunds, all sales are final.

Exchanges (if applicable)

If there is an error with your order, please send us an email at We will ask you to send the items to the address listed above so we can replace them or send you the correct item(s). You will be provided with a free shipping label and will not be responsible for any additional charges due to errors we made. If an item is out of stock, a refund will be issued.

Thank you,

Lamont-Doherty Earth Observatory