Image: A partial solar eclipse seen from space

Thanks to a quirk of our cosmos, the moon's average distance from Earth is just right for it to appear as the same size in the sky as the significantly larger sun. Once in a while the moon slides directly between Earth and ...

Chaco Canyon petroglyph may represent ancient total eclipse

As the hullabaloo surrounding the Aug. 21 total eclipse of the sun swells by the day, a University of Colorado Boulder faculty member says a petroglyph in New Mexico's Chaco Canyon may represent a total eclipse that occurred ...

An artificial eclipse for imaging extrasolar planets

In our hunt for Earth-like planets and extraterrestrial life, we've found thousands of exoplanets orbiting stars other than our sun. The caveat is that most of these planets have been detected using indirect methods. Similar ...

Solar eclipse a chance to study life's resilience

On August 21, as North America experiences its first total eclipse of the Sun in 38 years, astrobiologists are taking advantage of this rare celestial event to conduct experiments on life's ability to survive hostile conditions.

Eclipse balloons to study effect of Mars-like environment on life

Steps forward in the search for life beyond Earth can be as simple as sending a balloon into the sky. In one of the most unique and extensive eclipse observation campaigns ever attempted, NASA is collaborating with student ...

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