Faraway planet lacks methane gas, violating everything we know about atmospheres
A Neptune-sized exoplanet thirty-three light-years away is defying all our expectations of what planetary atmospheres should look like. The planet has 7,000 times less methane gas than expected, but it’s rich in carbon monoxides…and we have no idea why. The planet, designated GJ 436b, should be absolutely dominated by methane gas, and yet analysis reveals…
