Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Some of the most intriguing clues may already be sitting in scientific data. The difficult part is knowing when an unusual ...

Some UFO cases remain difficult to explain, but that is only the beginning of the scientific question. The evidence needed to ...

Space is a dangerous place – but for the astronauts who venture beyond Earth’s atmosphere, ingenuity and luck have helped ...

When we look across the Universe, we might come to the conclusion that intelligent life is really a very rare thing indeed ...

Researchers are particularly interested in planets orbiting orange K-dwarf stars, which could support life for billions of ...

Scientists have developed a compact electric detector that will help search for signs of extraterrestrial life based on the ...

Scientists believe there are planets outside our solar system where life is even more abundant and sustainable.

Larger than Earth, covered in shallow seas and orbiting long-lived orange stars, these hypothetical worlds could provide ...

Swan Hellenic will run six 2027 expedition cruises with SETI Institute scientists across the Pacific, Atlantic, Arctic and ...

Scientists are exploring whether planets beyond our solar system could offer better conditions for life than Earth, with some ...