Nine Hundred Telescopes and One Chance a Year
Reading the atmosphere of another world means catching starlight as it filters through that planet's air during a transit. The signal is about one part in a million and a true Earth twin transits only once a year, so you cannot simply repeat the measurement until the noise averages away. Each attempt has to work on its own. A team led from Shanghai has proposed the alternative to building an…
We haven't written up this one. Universe Today has the full story — the link below goes straight to it.