The house that's served as the residence for every vice president from Walter Mondale to Kamala Harris and now JD Vance is located on the grounds of the United States Naval Observatory.

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 ...

Now, the observation and operation building has been completed alongside a facility that will house a telescope ... for the European Southern Observatory’s Very Large Telescope, or the VLT ...