What are Comets? - Astronomy
Comets are essentially leftovers from the solar system's formation, originating from the Oort Cloud and Kuiper Belt. Despite such a benign-sounding description, comets make for interesting study and viewing, with a fascination leading back to ... [... more]
Bella Online |
Universe - Book Review - Astronomy
I own several excellent astronomy textbooks, and this is undoubtedly my favourite. It is a mandatory text for several college-level astronomy courses, though it may also benefit high school students. While I'm sure it is useful supplement to ... [... more]
Bella Online |
Space Elevators - An Introduction - Astronomy
Imagine a cable extending from Earth's surface right into space - an "elevator" for transporting cargo, supporting manned missions and even space tourism. This is the basic idea that is the space elevator, also called orbital tethers, space [... more]
Bella Online |
