Light travels really fast. It can go around the world 7.5 times in one second.

Light from the moon takes ……………… 1second to reach earth.
 Light from the Sun takes......................  8 minutes to reach earth.

Light from the Sun takes this long to reach:

Mercury         3 minutes

Venus             6 minutes

Earth                 8 minutes

Mars                 12 minutes

Jupiter               36 minutes

Saturn               1 hour 10 minutes

 

Uranus             2 hours 34 min.

Neptune           4 hours

Pluto                 4 hours +

Next Star         4 years!!

Center of our galaxy 40,000 years

Across the Galaxy 100,000 years

Andromeda Galaxy 2 Million years. 
 

Scale of time
 

Time in years	Event	Time in years	If the time since the earth formed were one day	If the time that modern humans have been around were one day.
1.5 x 1010	Big Bang	(15 Billion)	Friday  12:01 am
4.5 x 109	Earth Forms	(4.5 Billion)	Sunday 12:01 am
3.5 x 109	Life on Earth	(3.5 Billion)	5 am
5.7 x 108	Multi-cellular	(570 Million)	9 pm
4.4 x 108	Plants	(440 Million)	9:45 pm
2.5 x 108	Dinosaurs	(250 Million)	10:45 pm
1.4 x 108	Flowers	(140 Million) 11:12	11:12 pm
6.5 x 107	Dinosaurs die	(65 Million) 11:45	11:45 pm
4 x 106	Humans/Chimps	(7 Million)	11:57:50 pm
1 x 105	Modern Humans	(100,000)	2 seconds left Midnight	Midnight
4 x 104	Culture (40,000)	(40,000)	0.7 seconds left	2:00 pm
15 x 104	Mammoths die	(15,000)	0.3 seconds left	8:00 pm
5 x 103	Cities	(5,000)	0.1 seconds left	10:48 pm
2.3 x 103	Aristotle	(2,300)		11:30
5x102	Renaissance	(500)		7 minutes left
2 x 102	Industry	(200)		3 minutes left
1 x 102	Airplanes	(100)		1.5 minutes left
1 x 101	Internet, You	(10)		8 seconds left

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