This trippy new interactive stamp is making us want to send letters again

You don’t have to be an astronomer to appreciate this new innovative stamp, but it helps! NASA and all of its fans, particularly Twitter users,  are all freaking out over the latest stamp release from the U.S. Postal Service.

Okay, yes, we know that sounds nerdy, but it’s actually extremely cool.

The “Total Solar Eclipse” Forever stamp was created in honor of the upcoming solar eclipse on  August 21st, which will be visible in parts of the US. The total eclipse is going to be the first visible on the mainland US since the 1970s, so we totally get the excitement!

That’s why NASA and the US Postal service made a one-of-a-kind, never been done before stamp. Why’s it so special? Well, it’s heat sensitive and changes from black to an image of the moon when you press it! How awesome is that?

How the heck did they make a stamp that changes? Well, it’s not exactly like a mood ring, although both are sensitive to the heat of the human body. According to Postal News, the eclipse image used is from a total solar eclipse that was visible from Libya, and it’s printed using thermochromic ink. Essentially, that means it changes based on warmth.

Time to stock up on stamps.

If you’ve got a hankering to stock up on these (which isn’t a bad plan, since they’re Forever stamps and will always be worth one first-class one ounce piece of mail), you should probably keep them in a drawer, away from sunlight. It could effect the longevity of the stamp’s transforming powers. If you’re really invested, the Postal Service will have a special envelope you can buy to keep them in to preserve the thermochromic ink.

Getting letters in the mail is already so fun, at least from our point of view! Wouldn’t it be great to have a stockpile of these bad boys for all your mail? Use them to add a trippy effect to birthday cards or party invites. If you have any little humans in your life, show off your stamps. Kids are bound to be impressed by the image change. And if you live in one of the states that the eclipse will be visible from, it’ll be a great keepsake to remind you of the time you saw the moon block out the sun.

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