OK, you want to view the Sun or an eclipse, but you don’t have an approved solar filter for your telescope. Maybe you don’t even have a telescope. No problem! I’ll bet you have a cardboard box. That ...

A solar eclipse is a rare and spectacular celestial event. It happens when the Sun, Moon, and Earth align so that the Moon passes between the Sun and our home planet, blocking some or all of the Sun's ...

These paper crafts of attractive looks that seem to be satisfied just by assembling and decorating can actually take pictures using commercially available 35 mm filmPinhole cameraIt can be downloaded ...