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Congress almost defeated the LIGO program before it was ever built.

Jason Socrates Bardi, Editor

Scientists detect billion-year-old gravitational message.

Gabriel Popkin, Contributor

The challenges of nourishing astronauts on years-long trips.

Charles Q. Choi, Contributor

Laser spacecraft would redirect objects away from a collision course with Earth.

Charles Q. Choi, Contributor

New findings may help scientists understand how the largest stars in the universe die.

Charles Q. Choi, Contributor

An automatic telescope network could conduct tedious measurements at centers of galaxies.

Charles Q. Choi, Contributor

Eclipses would be a thing of the past.

Marsha Lewis, Contributing Producer

Astronauts should pack sleeping tablets and congestion medication before heading for the space station.

Benjamin Plackett, Contributor

"Spooky Action at a Distance" challenges familiar concepts of space and location.

Ben P. Stein, Contributor

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