#  EPS Virtual Colloquium 

 



####  calendar\_today Date and Time 

 **November 2, 2020** 

 12:00PM - 12:00PM EST 

####  pin\_drop Location 

 **Zoom**  



 

 



 

 Giada Arney, NASA Goddard Space Flight Center, will present "Earth is More than One Planet: Lessons from Earth History for Exoplanets" and Nicolas Cowan, McGill Space Institute, will present "The Habitability of M-Earths."

 Giada Arney, NASA Goddard Space Flight Center, will present "Earth is More than One Planet: Lessons from Earth History for Exoplanets" and Nicolas Cowan, McGill Space Institute, will present "The Habitability of M-Earths."

 Abstract for Arney: Earth is the best studied planet and the only known world with surface water and a biosphere. Thus, it provides a crucial starting point to guide our search for other habitable worlds in other planetary systems. Yet the exoplanets we have thus far discovered have surprised us in many ways, and our first observations of terrestrial planets in their stars habitable zones will unquestionably continue this trend of the unexpected. To guide our studies of the rich diversity of exoplanets we will someday encounter, it is instructive to consider the different environmental conditions and dominant biospheres that existed during our planet's long history to broaden our understanding of the types of habitable planets that might exist elsewhere. Some phases of Earth history are dramatically different from modern Earth, yet they are still, by definition, "Earth-like." In this presentation, I will provide a brief overview of some of the things Earth through time can tell us about the biosignatures and environmental conditions we might find on exoplanets.

 [https://harvard.zoom.us/j/98069508836?pwd=MWNOZnNHVTV1SDQ5YUJjbi9RTE9zQ…](https://harvard.zoom.us/j/98069508836?pwd=MWNOZnNHVTV1SDQ5YUJjbi9RTE9zQT09)

 Contact:  
Katrina Blanch



 

 



 

 

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