EarthSky News - Dec 24 - Top Stories This Week

December 24 Top Stories This Week by:

We'll be celebrating the holiday weekend with our families tomorrow. Best of the season to all of you who celebrate it. To everyone else … have a wonderful Sunday. See you again Monday morning! Scientists find jet stream in Earth's core Satellites have discovered a jet stream in the liquid iron part of Earth's core. Rover hits jackpot of Mars evidence Animation shows today vs. long ago at Mars' Gale Crater, plus the Curiosity rover's current path on Mars. The water whorls of baby starfish Beautiful, efficient mechanism tiny starfish larvae use to swim, feed and grow. Was the Christmas star real? Was there really a star that led 3 wise men to Bethlehem? Today in science: Earthrise from moon Click here for a video visualization of events leading to one of the best-known photographs of the 20th century – Earth rising over the moon - as seen by Apollo 8 astronauts. Bailey the unknown reindeer Like dogs? Celebrate Christmas? Don't miss this classic video Christmas greeting from Bailey the unknown reindeer. Before dawn Monday … Moon, Antares and Saturn Up for a sky watching challenge? Try catching the star Antares and the planet Saturn near the old waning crescent moon before sunrise on December 26 and 27.

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Before dawn Monday … Moon, Antares and Saturn Up for a sky watching challenge? Try catching the star Antares and the planet Saturn near the old waning crescent moon before sunrise on December 26 and 27.

Today's image: Solstice sun rolling down the hill Click in for an 8-frame animation of the sun setting behind Tijuca Peak in Rio de Janeiro, Brazil, 10 hours after the Southern Hemisphere's summer solstice. Images by Helio C. Vital. Submit your photo to EarthSky here!

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