Potential Signs of Life on Distant Planets Sound Exciting, but Confirmation Can Take Years

Potential signs of life on distant planets sound exciting, but confirmation can take years

Astronomers can use telescopes to find specific molecules in the atmospheres of neighboring planets, in nebulae—clouds of interstellar dust and gas—hundreds or thousands of light-years away, or in galaxies beyond the far reaches of the Milky Way.

Potential signs of life on distant planets sound exciting – but confirmation can take years

The Taurus molecular cloud is a relatively close star-forming region at 450 light-years away. It has been the site of many astromolecule discoveries. European Southern ObservatoryAstronomers can use telescopes to find specific molecules in the atmospheres of neighboring planets, in nebulae – clouds of interstellar dust and gas – hundreds or thousands of light-years away, or in galaxies beyond the far reaches of the Milky Way. So far, astronomers…