By combining 3D atmospheric chemistry and climate modeling with observed flare data from distant stars, a Northwestern-led team discovered that stellar flares could play an important role in the long-term evolution of a planet’s atmosphere and habitability. “We compared the atmospheric chemistry...
The new paper is the result of an ongoing collaboration between the Cavendish Laboratory and the MRC LMB, bringing together organic chemistry and exoplanet research. It builds on the work of Professor John Sutherland, a co-author on the current paper, who studies the chemical origin of life on...
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Maintaining life on an initially wet rocky planet in the habitable zone may be like trying to ride a wild bull. Most riders falls off. So inhabited planets may be rare in the universe, not because emergent life is rare, but because habitable environments are difficult to maintain during the ...
Like Earth's moon, many exomoons are tidally locked to their host planet, meaning one hemisphere is permanently turned away from the planet, which would constrain the habitable regions on the moon's surface. Moons also have two sources of light — one from their star and the other from the...
It is more likely to come from telescope observations of a faraway planet with atmospheric chemicals of biological activity. Researchers said methane (甲烷) may be the first detectable sign of life out of earth if discovered in the atmosphere of a rocky planet orbiting in the “habitable zone”...
By the time Science celebrated its 125th anniversary, ~150 exoplanets have been discovered. However, there was no known habitable exoplanet. Neither was it clear whether there is habitable environment in the solar system beyond the Earth. Thus the possibility to “listen” to radio signals ...
The first exoplanet, a planet orbiting a star other than the sun, was confirmed in 1992. Today, more than 3,600 exoplanet candidates have been discovered, with at least 3,000 additional candidates waiting to be confirmed. In addition, more than 600 multiple exoplanetary systems have been c...
The first exoplanet, a planet orbiting a star other than the sun, was confirmed in 1992. Today, more than 3,600 exoplanet candidates have been discovered, with at least 3,000 additional candidates waiting to be confirmed. In addition, more than 600 multiple exoplanetary systems have been c...
Researchers from the Harvard-Smithsonian Center for Astrophysics have discovered a planet that has easily risen to the top of the list for best spots where alien life might exist. The exoplanet is called LHS1140b and is located in a solar system about 39 light years away. It is being ...