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

From decades of astronomical observations, scientists know that most galaxies contain massive black holes at their centers.

The European Southern Observatory's (ESO) Extremely Large Telescope (ELT) — the world's largest visible- and infrared-light telescope — is currently under development on the Cerro Armazones mountain ...

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

STORY: Among the remote desert hills of northern Chile lies the aptly named “Extremely Large Telescope.”:: Cerro Armazones, ...

CERRO ARMAZONES, Chile - Dozens of boxes holding mirrors are placed along a remote desert hill in northern Chile as workers ...

The telescope is expected to be the largest optical-infrared facility in the world for decades. The mirrors are ready and awaiting installation.

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

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

When fully assembled, M1 will be the largest mirror ever built for an optical telescope. The inner frame of ESO's Extremely Large Telescope (ELT) which will support all five mirrors of the ELT ...