109 citations · 273 across the 9 of their papers we have counts for
8 papers · 1 filter
The geological and climatological case for a warmer and wetter early Mars
Ramses M. Ramirez, Robert A. Craddock
The climate of early Mars remains a topic of intense debate. Ancient terrains preserve landscapes consistent with stream channels, lake basins, and possibly even oceans, and thus t…
Abrupt climate transition of icy worlds from snowball to moist or runaway greenhouse
Jun Yang, Feng Ding, Ramses M. Ramirez +3
Ongoing and future space missions aim to identify potentially habitable planets in our Solar System and beyond. Planetary habitability is determined not only by a planet's current…
A more comprehensive habitable zone for finding life on other planets
Ramses M. Ramirez
The habitable zone (HZ) is the circular region around a star(s) where standing bodies of water could exist on the surface of a rocky planet. Space missions employ the HZ to select…
A Methane Extension to the Classical Habitable Zone
Ramses M. Ramirez, Lisa Kaltenegger
The habitable zone (HZ) is the circumstellar region where standing bodies of liquid water could exist on the surface of a rocky planet. Conventional definitions assume that CO2 and…
Exploring Extreme Space Weather Factors of Exoplanetary Habitability
V. S. Airapetian, V. Adibekyan, M. Ansdell +46
It is currently unknown how common life is on exoplanets, or how long planets can remain viable for life. To date, we have a superficial notion of habitability, a necessary first s…
The Ice Cap Zone: A Unique Habitable Zone for Ocean Worlds
Ramses M. Ramirez, Amit Levi
Traditional definitions of the habitable zone assume that habitable planets contain a carbonate-silicate cycle that regulates CO2 between the atmosphere, surface, and the interior.…