Stargazers in the U.S. will find the slender form of the crescent moon roughly 20 degrees above the western horizon right at ...

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Mercury will reach its greatest eastern elongation, marking the point where it is farthest from the Sun in the evening sky.

Friday, July 4 Mercury reaches its greatest eastern elongation from the Sun, standing 26° from our star at 1 A.M. EDT. We’ll ...

Save $100 on this 5-inch telescope and enjoy views of Saturn's rings, the belts of Jupiter and bright deep space objects like ...

The International Space Station and China's Tiangong Space Station will be visible for early risers. Here's how to make a ...

The model itself employs a 4.5-inch main parabolic mirror set in an open ribbed cage. The equatorial mounting has a spring wound drive. According to its donor it was constructed between 1913 and 1915 ...

The above image is a composite created using data from ESO's Very Large Telescope and Webb's MIRI. The host star, TWA 7, is marked with a circle and a star symbol.

After construction was complete, the telescope parts had to travel from California and Arizona to the top of Cerro Pachón, an 8,799-foot, seismically active peak in the Chilean Andes.

With this success, the team is already planning to expand the technology. They aim to apply it to the world’s largest solar telescope, the 4-meter Daniel K. Inouye Solar Telescope in Hawai‘i.

Object Details Manufacturer NASA, Goddard Space Flight Center Summary These are original flight components for the Ultraviolet Imaging Telescope (UIT), one of the major components of the ASTRO mission ...