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  • IMG_8281.jpg
    Pulsar Fusion
    Nuclear-powered rocket concept could cut journey time to Mars in half
  • Researchers compared the "space miso" after fermentation at the International Space Station.
    Maggie Coblentz
    Scientists sent beans into orbit and made ‘space miso.’ Here’s how it tasted
  • These whirling lines in the sky are the trails of stars after an hour-long exposure above Kitt Peak National Observatory (KPNO), a Program of NSF NOIRLab. The trails are shortest around the North Star, Polaris, a star that happens to coincide almost directly with the celestial north pole. The different colors in the trails reflect the different temperatures of the stars, with blue being the hottest stars and yellow/red the coolest. The telescope visible above the horizon is the Nicholas U. Mayall 4-meter Telescope, and the red glow on the mountain is caused by red lights used to ensure the eyes of visitors and staff remain dark adapted at night. The yellow glow on the horizon comes from Tucson, AZ, about 89 kilometers (55 miles) to the northeast. Over the past decade, light pollution like this has increased by 2% a year from many medium-sized and larger cities. To help monitor light pollution in your city, you can participate in the citizen science campaign, Globe at Night.
    KPNO/NOIRLab/NSF/AURA/B. Tafresh
    ‘Another mind-blowing change’: New data suggests mysterious dark energy is evolving
  • A SpaceX Falcon 9 rocket with the Fram2 mission astronauts aboard lifts off from launch pad 39A at the Kennedy Space Center in Cape Canaveral, Florida on March 31, 2025. Launching aboard SpaceX's Crew Dragon capsule Resilience, the Fram2 mission will be the first human spaceflight ever to cruise over Earth's polar regions. The flight is being funded privately by Chinese-born entrepreneur Chun Wang, who will serve as mission commander. The rest of the international crew are vehicle commander Jannicke Mikkelsen of Norway, pilot Rabea Rogge of Germany and mission specialist and medical officer Eric Philips of Australia. Their flight also marks the sixth private astronaut mission by SpaceX. (Photo by Gregg Newton / AFP) (Photo by GREGG NEWTON/AFP via Getty Images)
    Gregg Nedwton/AFP/Getty Images
    SpaceX launches 4 people on a polar orbit never attempted before
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