Native Hawaiian opponents of a giant telescope planned for Hawaii’s tallest mountain plan to protest outside the California home of one of the observatory’s major backers.

The opponents plan to gather outside the Redwood City home of Intel co-founder Gordon Moore and his wife today. The couple’s foundation has pledged $250 million toward the $1.4 billion Thirty Meter Telescope.

Protesters have occupied a road to Mauna Kea’s summit since mid-July to block construction. They say building a new telescope there will further desecrate a sacred place that already hosts 13 observatories.

Gordon and Betty Moore Foundation spokeswoman Holly Potter says the foundation recognizes strong feelings in support and opposition to the telescope. She says the foundation respects the right of all to express their points of view. She asks that the Moores be respected as private citizens.