In a recent update describing the progress of the construction of the Extremely Large Telescope (ELT), the European Southern Observatory (ESO) shared a photo of the dome that will protect the ...

New images from the Very Large Telescope (VLT) at the European Southern Observatory's (ESO) Paranal Observatory suggest that the galaxy, known as NGC 3640, may soon merge with a smaller galactic ...

A compact NASA space telescope that uses less power than a refrigerator is poised to chip away at that very large question.

Systems like that were very useful for measuring the radio brightness and positions in the sky of cosmic radio sources, but ...

A: The Extremely Large Telescope is planned to be one of the most capable astronomical observatories ever assembled. The telescope, currently about 60% complete, is intended to search for evidence ...

“We [will be able to] move quickly and map out very large areas of the sky,” adds Josh Schlieder, the telescope’s wide-field ...

Like its mythological namesake, the Phoenix Cluster burns with blisteringly hot gas, which cools to birth stars. The James Webb Space Telescope has now learned how this galaxy cluster does it.

Close up of the stairways up to the top of ESO's Extremely Large Telescope in Chile's Atacama Desert. | Credit: ESO/G. Vecchia These mirrors will allow astronomers to peer into the cosmos like ...