Caleb scharf
27 articles-
The Worrisome Rise of NFTs
An astrobiologist says non-fungible tokens do not bode well for our species’s future. -
Looking for Life on Mars
An astrobiologist and a director on the joys and challenges of filming space science. -
What Is Life?
An astrobiologist finds the heart of his work in a new novel by Richard Powers. -
The Universe Has Already Made Almost All the Stars It Will Ever Make
Black holes are cosmic dimmers. -
Is the Universe Open-Ended?
An intriguing proposal about what makes reality tick under the surface.
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A Wrinkle in Nature Could Lead to Alien Life
There may be more than one way to tune a universe for life.
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The Alien-Haunted World
Are space scientists too conservative and close-minded about the possibility that ET exists?
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We Never Know Exactly Where We’re Going in Outer Space
Adventures in space travel remind us how imprecisely we measure reality.
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The Universe Has Made Almost All the Stars It Will Ever Make
Black holes are cosmic dimmers. -
How Life Could Continue to Evolve
On the origin of an interstellar species. -
Mars Is a Second-Rate Backup Plan
On the red planet, existential threats abound. -
The Trouble with Counting Alien Civilizations
Life on Earth is a sketchy guide to intelligent life in the cosmos. -
Galaxy Simulations Offer a New Solution to the Fermi Paradox
Reprinted with permission from Quanta Magazine’s Abstractions blog.As far as anyone knows, we have always been alone. It’s just us on this pale blue dot, “home to everyone you love, everyone you know, everyone you ever heard of,” as Carl Sagan so memorably put it. No one has called or dropped by. And yet the […]
