Apr 22 - Why Earth Day?

April 22 Why Earth Day? by:

Why observe Earth Day on April 22? April 22 is the date of Earth Day in part because of Arbor Day, an earlier observance. The focus of Earth Day 2018 is plastic pollution. This Pacific island is the most plastic-polluted place on Earth On this Earth Day, explore remote, uninhabited Henderson Island in the South Pacific. It may look idyllic from above, but is littered with millions of tons of plastic. Our home world from afar Celebrate Earth Day with these 10 images of Earth from space. How TESS will hunt for alien worlds Launched last week, TESS will scan 200,000 close and bright stars, seeking new planets and possibly livable worlds. Here's a roundtable discussion with 2 scientists on the TESS mission. Lyrid meteors before dawn Monday? Late tonight might present a few Lyrid meteors but these Lyrids will have to compete with the glare of the waxing gibbous moon.

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Our home world from afar NASA's Lunar Reconnaissance Orbiter (LRO) captured a unique view of Earth from the spacecraft's vantage point in orbit around the moon on October 12, 2015. More images here.

Why celebrate Earth Day on April 22? In the late 1960s, there were love-ins, be-ins … and, like the first Earth Day, teach-ins. Here are two organizers of the first Earth Day in 1970. Image via earthday2013funphotos.com. Submit your photo to EarthSky here! Did a friend forward EarthSkyNews to you? Click here to get your own subscription!

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