As ever-larger telescopes are launched into space or built at high-altitude sites, these observatories still have wonders to share with visitors and astronomers alike.
A half-century ago, a radio telescope in Holmdel, N.J., sent two astronomers 13.8 billion years back in time — and opened a cosmic window that scientists have been peering through ever since.
The telescope will help astronomers study some of the most energetic places in the cosmos, while the lunar mission will aid the development of Japanese landing technologies.