¿Fueron los cometas o los asteroides los responsables de traer el agua a la Tierra? Nuevos hallazgos de la nave Rosetta sugieren que los asteroides son la mejor apuesta para responder la pregunta...
In the Enuma Elish, a Babylonian epic that recounts the creation of the world, the heavens and the Earth emerge from a primordial abyss of brackish water
In astronomy, bigger is almost always better. The size of a telescope’s aperture (or primary optical element) not only determines how many pesky little photons it can capture, but also the ultimate resolution of the image that can be formed...
Not long ago I came across a piece in the Scientific American archives from the earliest days of very-long baseline radio interferometry, the technique employed by the Event Horizon Telescope...
“Some say the world will end in fire, Some say in ice. From what I’ve tasted of desire I hold with those who favor fire. But if it had to perish twice, I think I know enough of hate To say that for destruction ice Is also great And would suffice.” Robert Frost (1874-1963) The [...]..
CAPE CANAVERAL, Fla.—After four and a half hours of flying around Earth, the new Orion capsule made a triumphant splashdown in the Pacific Ocean to end its debut mission.
CAPE CANAVERAL, Fla.—The press site here at Kennedy Space Center is buzzing with media, top NASA brass, and at least one celebrity of the furry sort: Elmo.
Movie audiences who went to theaters this fall to see The Theory of Everything got a glimpse of the challenges physicist Stephen Hawking has overcome to deliver his groundbreaking insights into the nature of black holes, space and time...
Editor's Note: Welcome to ANITA, the Antarctic Impulsive Transient Antenna! From October to December, Katie Mulrey is traveling with the ANITA collaboration to Antarctica to build and launch ANITA III, a scientific balloon that uses the entire continent of Antarctica for neutrino and cosmic ray detection...
I love apostates, believers in or, better yet, conceivers of a theory who turn against it. They restore my faith in science, because they show that scientists can overcome attachment to their own brainchildren, a feat that is essential for progress and cannot be taken for granted...
Mars – Valles Marineris © Ron Guyatt Sol System – Meteor Shower © Ron Guyatt In an explosion of heroic art deco design, illustrator and designer Ron Guyatt has created a massive series of posters making our own solar system fascinating again...
822 Martian days after landing, NASA’s Curiosity rover, carrying the Mars Science Laboratory, continues on its extraordinary journey across landscapes that are both utterly alien, and remarkably familiar...
Today marks the 50th anniversary of the launch of NASA’s Mariner IV spacecraft (November 28, 1964). In total, the mission gave us 21 complete images of Mars, including this, our first close view of the planet—courtesy of data transmitted by the interplanetary probe and earth-bound scientists wielding pastels (below)...
In an earlier blog post about Christopher Nolan's latest blockbuster movie, Interstellar, I lauded the film for its ambition, its visuals and the strong performances of its cast...
The amazing power duo of Flora Lichtman and Sharon Shattuck (Sweet Fern Productions) has come out with a new animated short on the discovery of microbes.
In the last few years, stories have abounded in the press of the successes of the Large Hadron Collider, most notably the discovery of the Higgs boson.
Congress can be...chaotic. Last Thursday night, President Obama unveiled plans for immigration reform, and literally challenged Congress to stop him.
The amazing power duo of Flora Lichtman and Sharon Shattuck (Sweet Fern Productions) has come out with a new animated short on the discovery of microbes.
For a long time the apparent discrepancy between the age of earth and the age of the cosmos posed a great problem to geologists and astronomers alike.
I’m writing this post for two reasons. One is to recommend a new book by Columbia astrobiologist Caleb Scharf (who also writes a terrific Scientific American blog, “Life, Unbounded“), and the other is to defend an old book of mine...
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