The role of asteroids and comet impacts on the origin of Earth’s water and organic molecules is reviewed. Earth is believed to have formed dry, and magma oceans...
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TalkSmall bodies and big impacts: comets, asteroids, and the origin of water and organics on Earth
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PublicationSpectroscopy of the Earth Observed as a Distant Planet
Through ground-based observations of the Earth's spectrum from California, satellite observations of clouds, and an atmospheric radiative transfer code, we have...
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PublicationThe Earth as a Distant Planet
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PublicationThe GTC exoplanet transit spectroscopy survey. III. No asymmetries in the transit of CoRoT-29b
Context. The launch of the exoplanet space missions obtaining exquisite photometry from space has resulted in the discovery of thousands of planetary systems...
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TalkThe Square Kilometre Array: At the Frontiers of Astronomy, Physics, and Astrobiology
The Square Kilometre Array is intended to be the centimeter- and meter-wavelength telescope for the 21st Century. Originally proposed as the "hydrogen telescope...
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PublicationThe Vanishing and Appearing Sources during a Century of Observations Project. I. USNO Objects Missing in Modern Sky Surveys and Follow-up Observations of a “Missing Star”
In this paper we report the current status of a new research program. The primary goal of the “Vanishing and Appearing Sources during a Century of Observations”...
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PublicationVegetation Signature in the Observed Globally Integrated Spectrum of Earth Considering Simultaneous Cloud Data: Applications for Extrasolar Planets
A series of missions will be launched over the next few decades that will be designed to detect and characterize extrasolar planets around nearby stars. These...
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PublicationX-exoplanets: an X-ray and EUV database for exoplanets
Extreme Ultraviolet (EUV) and X-ray emission is of great importance in several phenomena related to the formation of planetary systems and the atmospheres of...