Andromeda Constellation
Andromeda is a constellation in the northern sky. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations today. The Andromeda Galaxy is named after the constellation, as it appears within its boundaries.
Hartley 2 Comet
Comet Hartley 2 has made it to the news recently: first because of the comet's flyby near Earth and then due to it being visited by the Deep Impact spacecraft.
An Artist’s Vision of a Future Colony on the Moon
Some time ago, I stumbled upon an amazing painting by Marshal T. Savage depicting his vision of a future colony on the Moon. It’s the same Copernicus Crater, except it’s domed over and terraformed to create an ecosphere. At first I thought that this was really cool, but it would be impossible to build such a gigantic structure. (The crater has a diameter of 93 kilometers!) However after giving it some thought I changed my mind. If it was built with a material strong enough like carbon nanotubes, it could in theory be built. While such as structure would be impossible on Earth, the Moon has a gravity six times lower, which…
Rover Spotted On The Moon
The Russian Lunar rover Lunokhod 2 was recently spotted on the Moon’s surface. As shown in the photo below, the black arrow indicates where the tracks begin, while the white one shows the resting place of the rover. The arrows were placed by Phil Stooke, geography professor at University of Western Ontario. Richard Garriott, a successful video game developer and one of fewer than 10 private citizens to travel into space is the current owner of Lunokhod 2. He acquired it for over $68,500 when it was listed for sale in 1993 Sotheby’s auction. After seeing those findings, he mentioned plans to go see the rover from lunar orbit, or…
Inflatable Space Stations
NASA is considering the use of inflatable modules for the International Space Station (ISS). This idea has been proposed as early as in the 1960s, but it has never been put to use in space until Bigelow Aerospace took over the idea and developed two working prototypes and tested them in space.
Did you know? The Moon has an Atmosphere
It is a common misconception that the Moon’s surface is a perfect vacuum. It is not! The Moon indeed has an atmosphere, a very tenuous one however. If you could capture the Moon’s entire atmosphere, it would weigh about 10,000 kg. In other words, it would weigh less than a large truck. Sources of the lunar atmosphere There are two main sources of the lunar atmosphere. One of them is outgassing, which is the release of gasses that originate from radioactive decay processes deep inside the crust and mantle of the Moon. The second source is through a process known as sputtering: atoms are ejected from solid materials on the…
