...and the End of the Universe

PBS has created a short video to discuss the life expectancy of the Earth and the universe itself.  The 5 and a half minute video is called The Far Future of the Universe and is part of PBS digitalstudios' It's okay to Be Smart series.  In the video, host Joe Hanson provides a number of useful mileposts for the future, including:

• In 100,000 years not a single constellation we know today will be recognizable;
• In 600 million years photosynthesis will end for 99 percent of the Earth's plants;
• In 1 billion years the sun will boil away the Earth's oceans and only bacteria will remain (see image above - the Earth looks like Mars);
• In 4 billion years the Milky Way galaxy will collide with the Adromena galaxy;
• In 7.9 billion years our Sun will expand to swallow Mercury and Venus; and
• In 110 trillion years all stars throughout the universe will flicker out.

But wait, there's more.  The Earth still may still exist after all of that.  Go to the video to learn more.  It is a fascinating tale.