• Astronomy

    Astronomy Picture of the Week – The Colorful Demise of a Sun-Like Star

    This image, taken by the Hubble Space Telescope, shows the colorful demise of a Sun-like star. The star is ending its life by casting off its outer layers of gas, which formed a cocoon around the star’s remaining core. Ultraviolet light from the dying star makes the material glow. The burned-out star, called a white dwarf, is the white dot in the center. It is one of the hottest known white dwarfs, with a surface temperature of nearly 200,000 degrees Celsius. The nebula is called NGC 2440 and lies about 4,000 light-years from Earth in the direction of the constellation Puppis. Image credit: NASA, ESA, and K. Noll (STScI)

  • Green Technology

    Future Car Technologies – Alternative Fuel Vehicles

    An alternative fuel vehicle is a vehicle that runs on an energy source other than conventional petroleum fuels (petrol or diesel). Due to a combination of factors, such as environmental concerns, high oil prices and the potential for peak oil, the development of alternative energy sources for vehicles will increase in the future. This article will list all the major currently existing alternative energy vehicle technologies.

  • Astronomy

    Astronomy Picture of the Week – NGC 1999 Nebula

    This photo of nebula NGC 1999 was taken by the Hubble Space Telescope in December 1999. It is a good example of a reflection nebula. Just like fog around a street lamp, a reflection nebula shines only because a light source illuminates its dust and the nebula does not emit any visible light of its own. The main light source of this nebula is a recently formed star, visible in this photo near the center. This young star is cataloged as V380 Orionis, and its white color is due to its high surface temperature of about 10,000 degrees Celsius (nearly twice that of our own Sun). Its mass is estimated…

  • Engineering

    Future Car Technologies

    New cars are being developed in order to make them more sustainable, safer, more energy efficient, and less polluting. These won't exactly be the cars we've seen in science-fiction movies, but they should be a big improvement over what we have today.

  • Astronomy

    Astronomy Picture of the Week – Helix Nebula

    This eerie picture captured by the Spitzer Space Telescope shows the Helix Nebula, also known as NGC 7293. It is located 700 light-years away in the constellation of Aquarius. The two light-year diameter shroud of dust and gas around a central white dwarf is the result of the final stages in the evolution of a sun-like star. Dust particles are what makes this cosmic eye look red. Image Credit & Copyright: NASA, JPL-Caltech, Kate Su (Steward Obs., U. Arizona), et al.