LGM

American  

abbreviation

Astronomy.

1. Little Green Men: used to label the first pulsar discovered (1967), whose very regular radio waves were thought at first to be an artificial signal from an intelligent alien civilization, until a second pulsar was discovered.

---

Example Sentences

During the frigid LGM, the upper troposphere dried and cooled, reducing some of the leakage to space and keeping the planet a bit warmer.

From Science Magazine • Sep. 5, 2022

To achieve such precision, Rice graduate student and co-author Asmita Banerjee worked in a freezer room, cutting 100-gram chunks of ice taken from ice cores from Greenland and Antarctica that dated to the LGM.

From Science Magazine • Sep. 5, 2022

Sites in the Yukon and on Alaska’s North Slope have yielded putative traces of humans during the LGM.

From Scientific American • Apr. 20, 2021

This skepticism does not rule out the presence of people in the Americas before the LGM.

From Scientific American • Apr. 20, 2021

Indeed, at the seminar at which they announced their discovery, I remember that they called the first four sources to be found LGM 1—4, LGM standing for “Little Green Men.”

From "A Brief History of Time: And Other Essays" by Stephen Hawking