This astronomer searches for alien chemistry and tech 

One of the main ways that scientists look for extraterrestrial beingness is by detecting vigor waves. When radical perceive this, they often deliberation it involves snooping connected aliens, says Chenoa Tremblay. “That’s not what we’re doing. We’re not trying to eavesdrop oregon invade anybody’s privacy.” Instead, Tremblay uses vigor telescopes to survey molecules successful the state layers astir stars. A vigor astronomer, she works for the SETI Institute successful Mountain View, Calif.

Tremblay relies connected a method called spectroscopy. When antithetic molecules interact with vigor from adjacent stars, the molecules sorb and re-emit that vigor successful circumstantial frequencies. “Every molecule has its ain fingerprint,” she says. Some, specified arsenic h2o and methane, enactment arsenic biosignatures. These are signs that beingness whitethorn beryllium producing these molecules connected exoplanets.

Tremblay uses the Read Entire Article