Image credit: Expedition 15 Crew, NASA. Poster credit: Thishan Pavithra. Download here . The March equinox occurs at 05:14 UTC, Tuesday 20 March.  The Sun will shine directly down on the Earth’s equator and there will be nearly equal amounts of day and night throughout the world.  This is also the first day of spring (Vernal Equinox) in the northern hemisphere and the first day of fall (Autumnal Equinox) in the southern hemisphere. Wherever you are on 20 March, 2012, celebrate your season in the cycle of life with Astronomers Without Borders.  Enjoy your own unique Equinox this year—and why...

Poster credit: Azhy Hasan ( Download print version ) SEASONS WITHOUT BORDERS 4 This year AWB’s Solstice Celebration, Seasons Without Borders 4, will occur on 21 December, 2010, officially at 23:38 UTC.  As if by magic, the yin and yang of the seasons will happen simultaneously as the Northern Hemisphere experiences its shortest day while the Southern Hemisphere celebrates its longest day of the year.  This date is also called the first day of Winter in the north and the first day of Summer in the south. The name “Solstice” comes from the Latin words “sol,” meaning “sun,” and “sistere,”...

This first Seasons Without Borders event was a creation of AWB Affiliates in Brazil, India and Iraq. The idea caught on and more events are being schedule with each change of seasons. To the right is the poster the Amateur Astronomy Association of Kurdistan (Iraq) created for the first Seasons without Borders. Click the poster for the full-size version.

The poster for this Seasons without Borders event. Click the poster for the full-size version. Join amateur astronomers around the world on December 21-22, 2009 by taking your telescope out to share the sky with the public. On this day the Sun reaches its farthest point south in the sky, marking the beginning of summer in the southern hemisphere and the beginning of winter in the northern hemisphere. Would your group like to talk about the solstice with another group in the opposite hemisphere where the weather change is the opposite? Would you like to share a video connection with...