Venus may be overwhelmingly inhospitable today, but many planetary scientists believe that it wasn’t always this way. Billions of years ago, some observational evidence suggested that our planetary neighbor may have looked far more like Earth, complete with oceans potentially capable of harboring life.

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Suddenly, the world is plunged into an eerie, violet darkness. The temperature drops. Birds and other animals, bewildered by unforeseen night, start behaving strangely. Stars and planets appear in the sky next to the blotted-out sun.

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Using continuous imagery from NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission, scientists predicted the near-Earth arrival of a solar eruption to within 30 minutes in an initial proof-of-concept test. The results, presented Tuesday at the Committee on Space Research Scientific Meeting and under review at the journal Space Weather, could revolutionize the […]

The space around Earth is becoming increasingly crowded, with thousands of satellites and pieces of debris now sharing low Earth orbit. Even above this region—at altitudes of several hundred kilometers—the extremely thin upper atmosphere can slow satellites, making accurate information on atmospheric density essential for predicting satellite motion and preventing collisions.

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Two proposed computer chip designs could efficiently process data on future space telescopes while they search for Earth–like exoplanets, according to a University of Michigan Engineering study that will be presented at the IEEE Space Computing Conference in August.

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