私たちの暮らす太陽系に、未知の生命体が潜んでいる可能性があると考える科学者がいる。しかし、人類が暮らすこの青い惑星と同様の条件を備えた惑星や衛星は、太陽系内には存在しない。にもかかわらず、なぜ生命の可能性が語られるのだろうか。

Electrons released when cosmic rays strike water-ice can provide energy for microbes and facilitate the formation of complex ...

ESA's advanced XMM-Newton telescope discovered a faint X-ray glow from the 3I/ATLAS comet. What is this mysterious light it ...

Amid the twinkling stars, a cosmic interloper has captured the world's imagination – or has it? The interstellar object dubbed 3I/ATLAS, discovered in July 2025, has sparked wild speculation about ...