单词:mirror-type electron telescope
单词:mirror-type electron telescope 相关文章
Scientists Expect Unexpected from Largest Ground-based Telescope The mirror of the Hubble Space Telescope that gave the world stunning pictures of deep space is about 4.5 square meters. Compare that with the primary mirror of the James Webb Space Tel
An unusual Boeing 747 arrived in Christchurch at the weekend from California. It has a telescope on board. The plane will spend the next three weeks flying the skies of the South Island to study the Milky Way. It is called SOFIA, Stratospheric Observ
Technology Report - Is NASAs James Webb Space Telescope a Time Machine? This is the VOA Special English Technology Report. If you could build a time machine, what would it look like? Maybe, it should look like a telescope. American scientists are bui
Building a Better Mirror for Telescopes 为望远镜打造更优质镜面 To study the heavens, it's all about the photons. We in astronomy are always greedy. We want every photon we can collect. Drew Phillips, astronomer at University of California