Feb 23 - Top Stories This Week

February 23 Top Stories This Week by:

Help EarthSky keep going ... we NEED your help! Happy weekend, friends of the Earth and sky! Please take some time to check out our once-yearly crowd-funding campaign. Click here to donate and learn more. Stonehenge mystery solved? Europe's ancient megaliths, including Stonehenge, might have stemmed from a single hunter-gatherer culture in what's now northwestern France. Read more. Weird hexagonal dune field seen on Mars NASA's Odyssey orbiter has revealed something strange on Mars: a large dune field shaped roughly like a hexagon. See the images. NOAA announces the arrival of El Niño This year's El Niño is likely to be weak, with little influence on weather through early spring, say NOAA forecasters. Read more. More top stories   The ozone hole is recovering Earth's atmosphere extends beyond moon   Tides, and the pull of the moon and sun   Quietly, Regulus ushers in springtime   A solar flare 10 billion times more powerful than sun's   Firefall at Yosemite National Park   See it! Photos of 2019's biggest supermoon

Donate today to help EarthSky keep going We need you and your support to keep going! Donate now, or visit our campaign page to learn some of our needs and goals for the coming year. Thank you to all who have donated!

How to see 5 bright planets Here are the 5 bright planets, plus Earth, in their order outward from the sun. Their relative sizes are correct in this illustration, but - in real outer space - their relative distances are much more vast. Click in to learn to see these planets in our sky in late February and early March. Illustration via NASA.

Sunrise in Florida Photo taken February 10 by Melanie Higgins in Sun City Center, Florida. Thanks, Melanie! Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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