Alien Life on Venus? Phosphine Discovery in Venus' Atmosphere Raises Questions

Upam Bikash

According to a report by, in September 2020, a team of scientists led by Jane Greaves of Cardiff University in Wales reported the detection of phosphine, a possible indicator of life, in the clouds of Venus. The announcement sparked a heated debate and a surge of follow-up studies, which have generally failed to spot the intriguing molecule in the Venusian atmosphere. However, recent developments presented by Greaves at the Royal Astronomical Society's National Astronomy Meeting 2023, as reported by, suggest a new twist in the story. The discovery of phosphine deeper in Venus' atmosphere than ever before raises intriguing questions about the potential presence of alien life.

Exploring the Depths of Venus 

Alien Life in Venus? Phosphine Discovery

Using the James Clark Maxwell Telescope (JCMT) at the Mauna Kea Observatory in Hawaii, Greaves and her colleagues delved into the atmosphere of Venus, down to the top and even the middle of the planet's clouds. This breakthrough finding, reported by, indicates that the source of phosphine on Venus might originate from lower in its atmosphere, shedding new light on the ongoing investigations.

The Significance of Phosphine 

Phosphine on Earth is primarily generated by microorganisms thriving in low-oxygen environments. This makes phosphine a potential biosignature when detected on other worlds. The initial detection of phosphine on Venus caused a stir, given the relatively Earth-like conditions within the planet's cloud layer. However, emphasizes that the presence of phosphine alone does not definitively prove the existence of life on Venus, as abiotic processes could also contribute to its production.

Various theories have been proposed to explain the origin of phosphine on Venus. One hypothesis is the erosion of phosphorus-bearing rocks in the high atmosphere, facilitated by water and acid. To gain further insights, upcoming missions such as NASA's VERITAS and DAVINCI, as well as Europe's EnVision orbiter, are scheduled to launch within the next decade. As reported by, these missions will play a crucial role in advancing our understanding of Venus' composition, atmosphere, and potential for hosting life.

As reports, the recent findings regarding phosphine in Venus' atmosphere have reignited scientific interest in the possibility of extraterrestrial life. While the discovery is significant, it warrants further investigation and careful consideration of alternative explanations. The upcoming missions mentioned by hold immense potential for shedding light on the mysteries surrounding Venus and its potential habitability. By combining scientific inquiry with space exploration, we inch closer to answering the fundamental question: Could there be life on Venus?

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