New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

The findings of a new study may help "explain some of the radio silence we’ve seen in technosignature searches" for alien ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...