Fifty years ago, on Dec. 14, 1962, reporters gathered for a press briefing at NASA headquarters and heard an unearthly sound: radio signals being beamed back by a spacecraft flying within 22,000 miles of Venus.
The Mariner 2 mission to Venus was the first time any spacecraft had ever gone to another planet.
These days, vivid photographs showing scenes from all around the solar system are so ubiquitous that people might easily forget how mysterious our planetary neighbors used to be.
The world mourned the death this week of Indian maestro Ravi Shankar, whose name became synonymous with the sitar. Tributes eulogized Shankar as the great connector of the East and West who'd hobnobbed with The Beatles and collaborated with violin virtuoso Yehudi Menuhin. Less has been said about the roots of the music he spent a lifetime perfecting and innovating.