"If you want to take the stairs and walkways from the entrance of the ELT's dome all the way up to the top, you need about 30 minutes." The world's largest telescope continues to take shape on the ...

Construction of the world's largest telescope moves forward with progress of the structure's dome and housing for the primary mirror. The European Southern Observatory's (ESO) Extremely Large ...

Subaru Telescope’s celebration of its 25th anniversary is wrapping up in March 2025. There have been multiple projects to ...

With its clear, dark skies, northern Chile is home to two fifths of the world's astronomical infrastructure, but could that be under threat with increasing urbanisation and mining development?

The Clark Telescope resides in the "equatorial room" on the second floor of the Observatory, and is accessed via a spiral oak staircase. The original iron dome weighed two tons, yet could be rotated ...

The dome structure has large sliding doors that will remain closed during the day and open at night, allowing the telescope to survey the sky. There's a reason the dome is so big: It is designed ...