Observatories in Chile’s Atacama Desert, including the world’s largest optical telescope, could be blinded by light pollution ...

NASA wants to view the Big Bang with this behemoth, so it's saying goodbye to the James Webb Telescope. The new one redefines ...

Optical aberration theory is crucial for understanding and correcting the imperfections in images produced by telescopes, particularly in space telescopes where precision is paramount. Aberrations ...

Diffractive optical elements (DOEs) are crucial components in the design and functionality of space telescopes. These elements manipulate light through diffraction, allowing for innovative designs ...

January's new moon means less lunar glare, so make the most of the darker skies with our expertly researched guide to the best telescopes for seeing planets. January 29's new moon, when the moon ...

SPHEREx is slated to launch Feb. 27 on a SpaceX rocket. It is meant to map the entire night sky in infrared — something even ...

Save 23% on what we rate as one of the best telescopes out there. It features a 102mm aperture, a 1325mm focal length, a Maksutov-Cassegrain optical design, smartphone-controlled and it comes with ...

Dozens of boxes holding mirrors are placed along a remote desert hill in northern Chile as workers make progress in the ...

Dozens of boxes holding mirrors are placed along a remote desert hill in northern Chile as workers make progress in the ...

Observations from NASA's Chandra X-ray telescope and the VLT have revealed jets blasting from supermassive black holes cause ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

The telescope is expected to be the largest optical-infrared facility in the world for decades. The mirrors are ready and awaiting installation. "This is a major challenge," said Tobias Muller ...