New Study Links Ancient Climate Change to Interstellar Cloud Passage

Research suggests Earth's climate may have been influenced by dense gas clouds in interstellar space millions of years ago.

Scientists propose that Earth passed through a dense interstellar cloud 2-3 million years ago.
This passage could have compressed the heliosphere, exposing Earth to cosmic radiation.
Evidence includes isotopes like iron-60 and plutonium-244 found on Earth and the Moon.
The encounter might have contributed to climatic shifts, possibly affecting early human evolution.
Future research aims to explore other potential interstellar encounters and their impacts on Earth's climate.