Transit of Venus
Transits of Venus are among the rarest of predictable astronomical phenomena. While they are not as spectacular to observe as solar eclipses, they were historically important for determining the distance to Venus, and hence the size of the Solar System.
Credit:
SOHO/EIT/ESA/NASA
Share:
Space Scoop is supported by: 
The EU-UNAWE website was produced by funding from the European Community's Seventh Framework Programme ([FP7/2007-2013]) under grant agreement n° 263325