It's stirling silver, and it comes from space.
On April 3, 2020, this "I love you, Mom" pendant flew to the stratosphere onboard an Earth to Sky Calculus cosmic ray balloon. Soaring more than 108,596 feet (33.1 km) above the Sierra Nevada mountains of central California, it experienced temperatures as low as -63 C and air pressures less than 0.1% of sea level. The pendant's 2.5 hour flight ended when the balloon exploded, as planned. The payload parachuted back to Earth, landing in Death Valley Wash on the outskirts of Death Valley National Park. The pendant had a wild ride and the students got great data for their cosmic ray monitoring program.
Each piece of space jewelry comes with a greeting card showing the pendant in flight and telling the story of its journey to the stratosphere and back again.
I Heart Mom Space Pendant