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Today & this week

What’s happening in the sky

Live space weather from NOAA, the asteroids passing closest to Earth this week, and today’s Moon phase — explained so a kid can follow along.

▸ Moon tonight

Waxing gibbous

about 94% lit

▸ Storm meter (Kp)

03579—Kp

—

▸ Aurora odds tonight

Auroras follow the Kp index. This updates when the live reading arrives.

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Data sources
  • NOAA Space Weather Prediction Center (swpc.noaa.gov)
  • NASA Center for Near Earth Object Studies (cneos.jpl.nasa.gov)
  • NASA Astronomy Picture of the Day (apod.nasa.gov)
  • Global news feeds: NASA, ESA, JPL, Spaceflight Now, Phys.org, Science Daily, arXiv astro-ph
  • Moon phase computed locally from the synodic-month formula