Foil-lined foam insulation board, scraps of lumber, and a paint-thinner can hardly sound like the tools of a radio astronomer. But when coupled with an SDR, a couple of amplifiers, and a fair ...

[Styropyro’s] handheld, DIY laser rifle, or Laser Telescope Blaster as he calls it, works for long distances. His solution lies in some surprising physics: the larger the diameter of the beam ...

Plans for the telescope date to 2009, when scientists first selected Mauna Kea. The project won a series of approvals from Hawaii, including a permit to build on conservation land in 2011.

And NASA is avidly working up plans for a space telescope ... they will provide the funds necessary to build ever-larger or more sensitive telescopes in a period in which astronomy is a ...