Lab Notes

Engineering the climate

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Last month at a conference in Paris, 195 countries adopted a landmark agreement on how to respond to the Earth’s changing climate. The agreement...

Crowding the night sky

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I n mid-March, SpaceX launched 60 satellites into orbit 340 miles above the surface of the Earth, part of a planned global broadband internet service...

Scouting for life on Mars

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In 2012, a Dutch foundation called Mars One announced plans to establish a permanent human colony on Mars, with the first settlers arriving in...

Mining for solar storms

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In his recent book Accessory to War, astronomer Neil deGrasse Tyson and coauthor Avis Lang document the historical relationship between science and the military,...

Comet ATLAS shrugs

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In late December 2019, a telescope in Hawaii operated by the Asteroid Terrestrial-impact Last Alert System (ATLAS) discovered a comet on its way to...

Boosting solar physics

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Shortly after the financial crash of 2008, Congress passed the American Recovery and Reinvestment Act (ARRA) to stimulate the economy with $787 billion in...

Diving into Saturn

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I finally arrive on the Caltech campus in Pasadena, California, around 3:30 a.m. on Friday, Sept. 15 to bear witness to the final gravitational dance...

Cheating extinction

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When a huge space-rock fell from the sky 66 million years ago, it quickly brought an end to the age of the dinosaurs. Rat-like...

Akatsuki returns from the dead

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It is Dec. 7, 2015. We’re in Sagamihara, Japan, a little southwest of Tokyo. On a clear day like today, you can just make...

Naming the stars

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The holiday season is a peak time for companies that sell the novelty gift of “naming a star,” with a framed certificate and a...

Bouncing off the satellites

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On Oct. 30, NASA finally retired the Kepler space telescope, the prolific planet-hunter that has been scanning the skies for the past nine years....

Living with a star

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Just after Christmas 2019, a NASA spacecraft soared past Venus toward the inner solar system, and near the end of January 2020, it passed...