Feb 28 β€’ 09:34 UTC πŸ‡ΆπŸ‡¦ Qatar Al Jazeera

Jocelyn Bell: The Young Woman Who Thought She Found Little Green Men in the Universe

Jocelyn Bell, a 24-year-old doctoral student in 1967, initially mistook signals from pulsars for extraterrestrial life, referring to them humorously as "little green men" before realizing their true nature.

In the winter of 1967, Jocelyn Bell, then a 24-year-old PhD student, was working with a massive radio telescope at the Mullard Radio Astronomy Observatory near Cambridge. This large apparatus, which resembled a vast spider's web, was a culmination of her two years of effort and consisted of hundreds of miles of wires and antennas spread over an area equivalent to 57 tennis courts. While analyzing the recorded data, Bell detected a peculiar signalβ€”a faint, intermittent pulsation that resembled nothing she had encountered in her studies. The signal was sporadic, leading her and her supervisor, Antony Hewish, to initially speculate that it could be extraterrestrial in origin. Playing off this notion, Bell humorously dubbed the source "little green men," though the idea was quickly dismissed as a joke. However, as Bell continued her research and noticed the signal's repetition from another part of the sky, she began to eliminate the possibility of it being a result of cosmic anomalies or alien communication. This turning point led to the identification of pulsars, which are rapidly rotating neutron stars emitting beams of radiation. Bell's discovery not only reshaped our understanding of astrophysics but also highlighted her critical role in a groundbreaking moment in scientific history.

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