Credit: Max Planck Institute

Kepler Star Is The Most Spherical Object Ever Seen In Nature

Anyone who’s ever tried to make a perfect snowball has some inkling how difficult it is to create a sphere. Even nature has a hard time of it. But a star discovered by NASA’s Kepler Mission, dubbed Kepler 11145123, comes pretty darn close. Rounder than the sun, the Earth, the moon and all the rest,…
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Credit: NASA

Cosmic Rays Are Beating Up On Key Space Weather Satellite

Our finest tool for warning us of impending solar storms has been having a tough go since it was launched in 2015. Galactic cosmic rays may be to blame. NASA’s Deep Space Climate Observatory (DSCOVR) hangs its hat at the L1 Lagrange Point, a handy parking spot where the gravitational pulls of the Earth and sun cancel out.…
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Credit: Bob King

It’s Fall Again! Time For A Trip To The Celestial Equator

Cool breezes are back, and the outdoors color palette is shifting toward the red end of the spectrum. Spring begins Thursday morning (Sept. 22) at 9:21 a.m. Central Daylight time. Nice to know things will be warming up again so soon. Wait a sec. That’s the southern hemisphere. Here in the north, it’s the first…
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Credit: Bob King

Experience The Spinning Earth, Watch A Sunrise

We can’t directly sense the spinning Earth but every sunrise and sunset, we get an inkling. The Earth rotates once every 24 hours but it does so soundlessly because everything — our friends, our homes, the ground, the atmosphere and us — are all moving at the same speed in the near-vacuum of space. Imagine taking an airplane…
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Moonrise over Lake Superior from Duluth, MInn. Click the image to find when the Full Strawberry Moon rises for your town on the solstice on Monday (June 20). Credit: Bob King

Wow — First Day Of Summer And A Full Moon Too!

Stealthy summer has been advancing this way since December 22. That date marked the winter solstice or first day of winter, when the sun reached its lowest point in the sky in the northern hemisphere. Monday June 20th it will reach its highest point in the sky, officially marking the start of summer. Meteorological summer may have…
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