As climate targets slip out of reach and heat records fall year after year, a once-fringe idea is moving toward center stage: deliberately dimming the sunlight that reaches Earth to cool the planet.

“This is the first planet candidate with Earth-like radius and orbital properties transiting a Sun-like star bright enough ...

Clouds are important for Earth's energy balance because they interact with radiation in different ways. On one hand, low clouds reflect incoming solar radiation and thus cool Earth through a property ...

Astronomers have pulled a frozen, Earth-sized world out of archival data from the retired Kepler Space Telescope, revealing a planet candidate that circles its star roughly once a year and could host ...