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NASA’s SpaceX Crew-13 Set for Saturday Arrival at NASA Kennedy

NASA’s SpaceX Crew-13 Set for Saturday Arrival at NASA Kennedy

article2 days ago

NASA to Study Human Health, Performance During Crew-13 Mission

NASA to Study Human Health, Performance During Crew-13 Mission

article4 days ago

NASA Shares SpaceX Crew-14 Assignments for Space Station Mission

NASA Shares SpaceX Crew-14 Assignments for Space Station Mission

article3 days ago

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Highlights

NASA’s Swift Powers On Third Instrument, Restarts Automated Slewing

NASA’s Swift Powers On Third Instrument, Restarts Automated Slewing

article 2 days ago

NASA’s Roman Team Confirms Ground Stations Receiving Data

NASA’s Roman Team Confirms Ground Stations Receiving Data

article 2 days ago

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

article 3 days ago

Highlights

Researchers: Help NASA Prevent Blood Clot Formation in Space

Researchers: Help NASA Prevent Blood Clot Formation in Space

article 2 days ago

NASA to Study Human Health, Performance During Crew-13 Mission

NASA to Study Human Health, Performance During Crew-13 Mission

article 4 days ago

Risks of Decompression Sickness and Venous Thromboembolism during Spaceflight and Patent Foramen Ovale Implications

Risks of Decompression Sickness and Venous Thromboembolism during Spaceflight and Patent Foramen Ovale Implications

article 5 days ago

Highlights

Explosive Intensification for Hurricane Polo

Explosive Intensification for Hurricane Polo

article 3 days ago

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

article 3 days ago

Cloudy Cloak Over the Northwest

Cloudy Cloak Over the Northwest

article 4 days ago

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Embracing the Equinox

Embracing the Equinox

article 6 days ago

NASA Discovery Reveals Complex Water Systems on Early Mars

NASA Discovery Reveals Complex Water Systems on Early Mars

article 6 days ago

Helio and You: A Fresh Perspective on the Sun

Helio and You: A Fresh Perspective on the Sun

article 2 weeks ago

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Circling the Black Hole at the Photon Sphere

Circling the Black Hole at the Photon Sphere

article 2 days ago

Circling the Black Hole

Circling the Black Hole

article 2 days ago

Approaching the Black Hole

Approaching the Black Hole

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Highlights

MVP-Plant-02

MVP-Plant-02

article 1 day ago

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

US-India Satellite Captures Time-lapse Video of Volcanic Eruption

article 3 days ago

Habitable Worlds Observatory Precursor Science Investigations (ROSES D.8)

Habitable Worlds Observatory Precursor Science Investigations (ROSES D.8)

article 4 days ago

Highlights

2026-2027 DWU: Middle School Design Challenge

2026-2027 DWU: Middle School Design Challenge

article 2 days ago

2026-2027 DWU: High School Engineering Challenge

2026-2027 DWU: High School Engineering Challenge

article 2 days ago

NASA Modernizes Commercial Airline Systems

NASA Modernizes Commercial Airline Systems

article 4 days ago

Highlights

Explosive Intensification for Hurricane Polo

Explosive Intensification for Hurricane Polo

article 3 days ago

NASA’s Machines for Mars Make Beer Bubbly

NASA’s Machines for Mars Make Beer Bubbly

article 3 days ago

Cloudy Cloak Over the Northwest

Cloudy Cloak Over the Northwest

article 4 days ago

Highlights

NASA Astronaut to Answer Questions from New Hampshire Students

NASA Astronaut to Answer Questions from New Hampshire Students

article 6 days ago

NASA Kicks Off Nationwide Effort to Prepare Tomorrow’s Space Workforce

NASA Kicks Off Nationwide Effort to Prepare Tomorrow’s Space Workforce

article 6 days ago

NASA’s Integrated Medical Model (IMM)

NASA’s Integrated Medical Model (IMM)

article 2 weeks ago

Highlights

NASA’s Machines for Mars Make Beer Bubbly

NASA’s Machines for Mars Make Beer Bubbly

article 3 days ago

NASA Unveils Winning Designs for Mars Space Food Systems Challenge

NASA Unveils Winning Designs for Mars Space Food Systems Challenge

article 3 days ago

Shannon Lucid’s Record-Setting Mission Aboard Mir

Shannon Lucid’s Record-Setting Mission Aboard Mir

article 4 days ago

Highlights

La NASA anuncia la cobertura de la misión lunar Artemis II

La NASA anuncia la cobertura de la misión lunar Artemis II

article 6 months ago

Agenda diaria de la misión a la Luna de Artemis II de la NASA

Agenda diaria de la misión a la Luna de Artemis II de la NASA

article 7 months ago

La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general

La NASA refuerza Artemis: añade una misión y perfecciona su arquitectura general

article 7 months ago

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David Grinspoon

David Grinspoon
Senior Scientist: Planetary Science Institute
Astrobiology Chair: US Library of Congress (2012-2013)
Author: Lonely Planets: The Natural Philosophy of Alien Life
Author: Chasing New Horizons (w/Alan Stern)

How will humanity first discover ET Life?
There will be a class of exoplanets whose atmospheres
are so undeniably strange, in ways that seem to defy
geochemical explanation, that they will demand a
biological explanation. �A strange disequilibrium
mixture of atmospheric gasses that only make sense
when *bio*geochemistry is invoked.

National Aeronautics and Space Administration

NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.

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Page Last Updated:

Sep 27, 2026
Responsible NASA Official for Science:

Dana Bolles

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