Earth’s Size Compared to Other Astronomical Objects [Infographic]
The Earth is only a speck of dust in the grand scale of the universe. There are stars that would even dwarf our Sun. If you thought that Aldebaran was huge, wait until you see supergiant or hypergiant stars like Betelgeuse, Antares or VV Cephei!
Monthly Stargazing Calendar for June 2011
On June 15 there will be a total lunar eclipse which will be visible throughout most of South America, Europe, Africa, Asia, and Australia. Unfortunately it will not be visible in North America. Here is a map with the exact areas where the lunar eclipse can be witnessed…
Monthly Stargazing Calendar for April 2011
The Lyrids are an average meteor shower with about 20 meteors per hour at their peak on April 21 and 22. These meteors can produce bright dust trails that last for several seconds. The shower is most spectacular during the peak on April 21 and 22, but some meteors can still be spotted from April 16 to 25. The meteors will be radiating from the constellation of Lyra after midnight.
Monthly Stargazing Calendar for March 2011
This month, on the 20th, an equinox will occur. The Sun will shine directly on the equator and there will be nearly equal amounts of day and night throughout the world.
Non-Rocket Spacelaunch – Extraterrestrial Space Elevator Concepts
Space elevators, a futuristic concept, could be adapted for various celestial bodies: Mars, the Moon, and even asteroids, they promise a revolution in space access.
Astronomy Picture of the Week – Venus: Earth’s Cloudy Twin
Discover Venus, Earth's sister planet, in this captivating image by Galileo spacecraft. Learn about its extreme conditions and unmatched brilliance in the sky.